diff --git a/Cargo.lock b/Cargo.lock
index 915a3e4d16..2aeae5ea3b 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -8,7 +8,7 @@ version = "0.12.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3720d0064a0ce5c0de7bd93bdb0a6caebab2a9b5668746145d7b3b0c5da02914"
 dependencies = [
- "actix-rt 2.4.0",
+ "actix-rt 2.7.0",
  "actix_derive",
  "bitflags",
  "bytes 1.0.1",
@@ -22,7 +22,7 @@ dependencies = [
  "parking_lot 0.11.1",
  "pin-project-lite 0.2.6",
  "smallvec 1.6.1",
- "tokio 1.13.0",
+ "tokio 1.16.1",
  "tokio-util 0.6.9",
 ]
 
@@ -55,7 +55,7 @@ dependencies = [
  "log",
  "memchr",
  "pin-project-lite 0.2.6",
- "tokio 1.13.0",
+ "tokio 1.16.1",
  "tokio-util 0.6.9",
 ]
 
@@ -181,7 +181,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c9b510d35f13987537289f38bf136e7e702a5c87cc28760310cc459544f40afd"
 dependencies = [
  "actix-codec 0.4.1",
- "actix-rt 2.4.0",
+ "actix-rt 2.7.0",
  "actix-service 2.0.1",
  "actix-tls 3.0.0-beta.7",
  "actix-utils 3.0.0",
@@ -212,7 +212,7 @@ dependencies = [
  "rand 0.8.4",
  "sha-1",
  "smallvec 1.6.1",
- "tokio 1.13.0",
+ "tokio 1.16.1",
  "zstd",
 ]
 
@@ -299,13 +299,13 @@ dependencies = [
 
 [[package]]
 name = "actix-rt"
-version = "2.4.0"
+version = "2.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4a0c218d0a17c120f10ee0c69c9f0c45d87319e8f66b1f065e8412b612fc3e24"
+checksum = "7ea16c295198e958ef31930a6ef37d0fb64e9ca3b6116e6b93a8bdae96ee1000"
 dependencies = [
  "actix-macros 0.2.3",
  "futures-core",
- "tokio 1.13.0",
+ "tokio 1.16.1",
 ]
 
 [[package]]
@@ -334,14 +334,14 @@ version = "2.0.0-beta.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7367665785765b066ad16e1086d26a087f696bc7c42b6f93004ced6cfcf1eeca"
 dependencies = [
- "actix-rt 2.4.0",
+ "actix-rt 2.7.0",
  "actix-service 2.0.1",
  "actix-utils 3.0.0",
  "futures-core",
  "log",
  "mio 0.7.11",
  "num_cpus",
- "tokio 1.13.0",
+ "tokio 1.16.1",
 ]
 
 [[package]]
@@ -413,7 +413,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e4af84e13e4600829858a3e68079be710d1ada461431e1e4c5ae663479ea0a3c"
 dependencies = [
  "actix-codec 0.4.1",
- "actix-rt 2.4.0",
+ "actix-rt 2.7.0",
  "actix-service 2.0.1",
  "actix-utils 3.0.0",
  "derive_more",
@@ -502,7 +502,7 @@ dependencies = [
  "actix-http 3.0.0-beta.11",
  "actix-macros 0.2.3",
  "actix-router 0.5.0-beta.2",
- "actix-rt 2.4.0",
+ "actix-rt 2.7.0",
  "actix-server 2.0.0-beta.6",
  "actix-service 2.0.1",
  "actix-utils 3.0.0",
@@ -547,7 +547,7 @@ dependencies = [
  "bytestring",
  "futures-core",
  "pin-project 1.0.7",
- "tokio 1.13.0",
+ "tokio 1.16.1",
 ]
 
 [[package]]
@@ -710,7 +710,7 @@ dependencies = [
  "smart-default",
  "smol_str",
  "thiserror",
- "tokio 1.13.0",
+ "tokio 1.16.1",
  "uuid",
 ]
 
@@ -877,7 +877,7 @@ dependencies = [
  "serde_derive",
  "serde_json",
  "sqlx",
- "tokio 1.13.0",
+ "tokio 1.16.1",
  "toml",
  "url_config",
 ]
@@ -1147,7 +1147,7 @@ dependencies = [
  "futures-core",
  "memchr",
  "pin-project-lite 0.2.6",
- "tokio 1.13.0",
+ "tokio 1.16.1",
  "tokio-util 0.6.9",
 ]
 
@@ -1639,7 +1639,7 @@ dependencies = [
  "subprocess",
  "subprocess_common",
  "tempdir",
- "tokio 1.13.0",
+ "tokio 1.16.1",
  "tts_common",
 ]
 
@@ -2032,7 +2032,7 @@ dependencies = [
  "http",
  "indexmap",
  "slab",
- "tokio 1.13.0",
+ "tokio 1.16.1",
  "tokio-util 0.6.9",
  "tracing",
 ]
@@ -2189,6 +2189,7 @@ version = "0.0.1"
 dependencies = [
  "actix-cors 0.6.0-beta.3",
  "actix-http 3.0.0-beta.11",
+ "actix-rt 2.7.0",
  "actix-web 4.0.0-beta.10",
  "anyhow",
  "base64 0.13.0",
@@ -2199,9 +2200,11 @@ dependencies = [
  "log",
  "once_cell",
  "regex",
+ "reusable_types",
  "serde",
  "serde_derive",
  "serde_json",
+ "speculoos",
  "toml",
 ]
 
@@ -2274,7 +2277,7 @@ dependencies = [
  "itoa 0.4.7",
  "pin-project-lite 0.2.6",
  "socket2 0.4.0",
- "tokio 1.13.0",
+ "tokio 1.16.1",
  "tower-service",
  "tracing",
  "want",
@@ -2289,7 +2292,7 @@ dependencies = [
  "bytes 1.0.1",
  "hyper 0.14.14",
  "native-tls",
- "tokio 1.13.0",
+ "tokio 1.16.1",
  "tokio-native-tls",
 ]
 
@@ -2334,7 +2337,7 @@ dependencies = [
  "actix-files",
  "actix-http 3.0.0-beta.11",
  "actix-multipart",
- "actix-rt 2.4.0",
+ "actix-rt 2.7.0",
  "actix-service 2.0.1",
  "actix-utils 3.0.0",
  "actix-web 4.0.0-beta.10",
@@ -2393,7 +2396,7 @@ dependencies = [
  "subprocess",
  "tempdir",
  "time 0.2.26",
- "tokio 1.13.0",
+ "tokio 1.16.1",
  "toml",
  "tts_common",
  "twitch_common",
@@ -2453,7 +2456,7 @@ dependencies = [
  "storage_buckets_common",
  "subprocess",
  "tempdir",
- "tokio 1.13.0",
+ "tokio 1.16.1",
  "tts_common",
 ]
 
@@ -2996,7 +2999,7 @@ dependencies = [
  "rand 0.7.3",
  "serde",
  "serde_json",
- "tokio 1.13.0",
+ "tokio 1.16.1",
  "uuid",
 ]
 
@@ -3664,7 +3667,7 @@ dependencies = [
  "percent-encoding 2.2.0",
  "pin-project-lite 0.2.6",
  "sha1",
- "tokio 1.13.0",
+ "tokio 1.16.1",
  "tokio-util 0.6.9",
  "url 2.3.1",
 ]
@@ -3758,7 +3761,7 @@ dependencies = [
  "serde",
  "serde_json",
  "serde_urlencoded",
- "tokio 1.13.0",
+ "tokio 1.16.1",
  "tokio-native-tls",
  "url 2.3.1",
  "wasm-bindgen",
@@ -3886,7 +3889,7 @@ dependencies = [
  "sha2 0.10.5",
  "thiserror",
  "time 0.3.14",
- "tokio 1.13.0",
+ "tokio 1.16.1",
  "tokio-stream",
  "url 2.3.1",
 ]
@@ -3941,7 +3944,7 @@ dependencies = [
  "pin-project-lite 0.2.6",
  "rxml_validation",
  "smartstring",
- "tokio 1.13.0",
+ "tokio 1.16.1",
 ]
 
 [[package]]
@@ -4378,10 +4381,10 @@ version = "0.5.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0d1bd069de53442e7a320f525a6d4deb8bb0621ac7a55f7eccbc2b58b57f43d0"
 dependencies = [
- "actix-rt 2.4.0",
+ "actix-rt 2.7.0",
  "native-tls",
  "once_cell",
- "tokio 1.13.0",
+ "tokio 1.16.1",
  "tokio-native-tls",
 ]
 
@@ -4457,7 +4460,7 @@ dependencies = [
  "container_common",
  "log",
  "rust-s3",
- "tokio 1.13.0",
+ "tokio 1.16.1",
 ]
 
 [[package]]
@@ -4468,7 +4471,7 @@ dependencies = [
  "actix-files",
  "actix-http 3.0.0-beta.11",
  "actix-multipart",
- "actix-rt 2.4.0",
+ "actix-rt 2.7.0",
  "actix-service 2.0.1",
  "actix-utils 3.0.0",
  "actix-web 4.0.0-beta.10",
@@ -4532,7 +4535,7 @@ dependencies = [
  "subprocess",
  "tempdir",
  "time 0.2.26",
- "tokio 1.13.0",
+ "tokio 1.16.1",
  "toml",
  "tts_common",
  "twitch_api2",
@@ -4813,11 +4816,10 @@ dependencies = [
 
 [[package]]
 name = "tokio"
-version = "1.13.0"
+version = "1.16.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "588b2d10a336da58d877567cd8fb8a14b463e2104910f8132cd054b4b96e29ee"
+checksum = "0c27a64b625de6d309e8c57716ba93021dccf1b3b5c97edd6d3dd2d2135afc0a"
 dependencies = [
- "autocfg 1.0.1",
  "bytes 1.0.1",
  "libc",
  "memchr",
@@ -4865,9 +4867,9 @@ dependencies = [
 
 [[package]]
 name = "tokio-macros"
-version = "1.5.1"
+version = "1.8.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "114383b041aa6212c579467afa0075fbbdd0718de036100bc0ba7961d8cb9095"
+checksum = "d266c00fde287f55d3f1c3e96c500c362a2b8c695076ec180f27918820bc6df8"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -4881,7 +4883,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f7d995660bd2b7f8c1568414c1126076c13fbb725c40112dc0120b78eb9b717b"
 dependencies = [
  "native-tls",
- "tokio 1.13.0",
+ "tokio 1.16.1",
 ]
 
 [[package]]
@@ -4910,7 +4912,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "bc6844de72e57df1980054b38be3a9f4702aba4858be64dd700181a8a6d0e1b6"
 dependencies = [
  "rustls",
- "tokio 1.13.0",
+ "tokio 1.16.1",
  "webpki",
 ]
 
@@ -4922,7 +4924,7 @@ checksum = "50145484efff8818b5ccd256697f36863f587da82cf8b409c53adf1e840798e3"
 dependencies = [
  "futures-core",
  "pin-project-lite 0.2.6",
- "tokio 1.13.0",
+ "tokio 1.16.1",
 ]
 
 [[package]]
@@ -4959,7 +4961,7 @@ dependencies = [
  "log",
  "pin-project 1.0.7",
  "rustls",
- "tokio 1.13.0",
+ "tokio 1.16.1",
  "tokio-rustls",
  "tungstenite",
  "webpki",
@@ -5009,7 +5011,7 @@ dependencies = [
  "futures-sink",
  "log",
  "pin-project-lite 0.2.6",
- "tokio 1.13.0",
+ "tokio 1.16.1",
 ]
 
 [[package]]
@@ -5130,7 +5132,7 @@ dependencies = [
  "storage_buckets_common",
  "subprocess",
  "tempdir",
- "tokio 1.13.0",
+ "tokio 1.16.1",
  "tts_common",
 ]
 
@@ -5161,7 +5163,7 @@ dependencies = [
  "storage_buckets_common",
  "subprocess",
  "tempdir",
- "tokio 1.13.0",
+ "tokio 1.16.1",
  "tts_common",
 ]
 
@@ -5211,7 +5213,7 @@ dependencies = [
  "actix-cors 0.5.4",
  "actix-files",
  "actix-http 3.0.0-beta.11",
- "actix-rt 2.4.0",
+ "actix-rt 2.7.0",
  "actix-service 2.0.1",
  "actix-utils 3.0.0",
  "actix-web 4.0.0-beta.10",
@@ -5259,7 +5261,7 @@ dependencies = [
  "sha2 0.9.5",
  "sqlx",
  "time 0.2.26",
- "tokio 1.13.0",
+ "tokio 1.16.1",
  "tokio-tungstenite",
  "toml",
  "tts_common",
@@ -5464,6 +5466,7 @@ dependencies = [
  "actix-web 4.0.0-beta.10",
  "anyhow",
  "http_server_common",
+ "reusable_types",
 ]
 
 [[package]]
@@ -5576,7 +5579,7 @@ dependencies = [
  "storage_buckets_common",
  "subprocess",
  "tempdir",
- "tokio 1.13.0",
+ "tokio 1.16.1",
  "tts_common",
 ]
 
@@ -5607,7 +5610,7 @@ dependencies = [
  "storage_buckets_common",
  "subprocess",
  "tempdir",
- "tokio 1.13.0",
+ "tokio 1.16.1",
  "tts_common",
 ]
 
@@ -5742,7 +5745,7 @@ dependencies = [
  "actix-cors 0.5.4",
  "actix-files",
  "actix-http 3.0.0-beta.11",
- "actix-rt 2.4.0",
+ "actix-rt 2.7.0",
  "actix-service 2.0.1",
  "actix-utils 3.0.0",
  "actix-web 4.0.0-beta.10",
@@ -5791,7 +5794,7 @@ dependencies = [
  "sha2 0.9.5",
  "sqlx",
  "time 0.2.26",
- "tokio 1.13.0",
+ "tokio 1.16.1",
  "tokio-tungstenite",
  "toml",
  "twitch_api2",
diff --git a/crates/lib/http_server_common/Cargo.toml b/crates/lib/http_server_common/Cargo.toml
index fc005df1d5..ae6e251573 100644
--- a/crates/lib/http_server_common/Cargo.toml
+++ b/crates/lib/http_server_common/Cargo.toml
@@ -16,6 +16,7 @@ path = "src/lib.rs"
 
 # Internal
 container_common = { path = "../container_common" }
+reusable_types = { path = "../reusable_types" }
 
 # External
 anyhow = "1.0.40"
@@ -40,3 +41,7 @@ serde = "1.0.125"
 serde_derive = "1.0.125"
 serde_json = "1.0.64"
 toml = "0.5.8"
+
+[dev-dependencies]
+actix-rt = "2.7.0"
+speculoos = "0.9.0" # Fluent assertions
diff --git a/crates/lib/http_server_common/src/cors.rs b/crates/lib/http_server_common/src/cors.rs
index a9363d0661..a2b0208076 100644
--- a/crates/lib/http_server_common/src/cors.rs
+++ b/crates/lib/http_server_common/src/cors.rs
@@ -1,10 +1,174 @@
 use actix_cors::Cors;
 use actix_http::http;
+use log::info;
+use reusable_types::server_environment::ServerEnvironment;
 
-// TODO: Take an environment.
 /// Return cors config for FakeYou / Vocodes / OBS / local development
-pub fn build_common_cors_config() -> Cors {
-  Cors::default()
+pub fn build_cors_config(server_environment: ServerEnvironment) -> Cors {
+  let is_production = server_environment.is_deployed_in_production();
+
+  info!("Building CORS for environment: {:?}", server_environment);
+
+  do_build_cors_config(is_production)
+}
+
+/// Return cors config for FakeYou / Vocodes / OBS / local development
+pub fn build_production_cors_config() -> Cors {
+  const IS_PRODUCTION : bool = true;
+  do_build_cors_config(IS_PRODUCTION)
+}
+
+fn do_build_cors_config(is_production: bool) -> Cors {
+  let mut cors = Cors::default();
+
+  info!("Building CORS for production: {}", is_production);
+
+  cors = add_fakeyou(cors, is_production);
+  cors = add_storyteller(cors, is_production);
+  cors = add_power_stream(cors, is_production);
+  cors = add_legacy_storyteller_stream(cors, is_production);
+  cors = add_legacy_vocodes(cors, is_production);
+  cors = add_legacy_trumped(cors, is_production);
+
+  if !is_production {
+    cors = add_development_only(cors);
+  }
+
+  // Remaining setup
+  cors.allowed_methods(vec!["GET", "POST", "OPTIONS", "DELETE"])
+      .supports_credentials()
+      .allowed_headers(vec![
+        http::header::ACCEPT,
+        http::header::ACCESS_CONTROL_ALLOW_ORIGIN, // Tabulator Ajax
+        http::header::CONTENT_TYPE,
+        http::header::ACCESS_CONTROL_ALLOW_CREDENTIALS, // https://stackoverflow.com/a/46412839
+        http::header::HeaderName::from_static("x-requested-with") // Tabulator Ajax sends
+      ])
+      .max_age(3600)
+}
+
+pub fn add_fakeyou(cors: Cors, is_production: bool) -> Cors {
+  // TODO: Remove non-SSL "http://" from production in safe rollout
+  if is_production {
+    cors
+        // FakeYou (Production)
+        .allowed_origin("http://api.fakeyou.com")
+        .allowed_origin("http://fakeyou.com")
+        .allowed_origin("https://api.fakeyou.com")
+        .allowed_origin("https://fakeyou.com")
+        // FakeYou (Staging)
+        .allowed_origin("http://staging.fakeyou.com")
+        .allowed_origin("https://staging.fakeyou.com")
+  } else {
+    cors
+        // FakeYou (Development)
+        .allowed_origin("http://dev.fakeyou.com")
+        .allowed_origin("http://development.fakeyou.com")
+        .allowed_origin("https://dev.fakeyou.com")
+        .allowed_origin("https://development.fakeyou.com")
+  }
+}
+
+pub fn add_power_stream(cors: Cors, is_production: bool) -> Cors {
+  // TODO: Remove non-SSL "http://" from production in safe rollout
+  if is_production {
+    cors
+        .allowed_origin("https://dash.power.stream")
+        .allowed_origin("https://power.stream")
+  } else {
+    cors
+        .allowed_origin("http://dev.dash.power.stream")
+        .allowed_origin("http://dev.power.stream")
+        .allowed_origin("https://dev.dash.power.stream")
+        .allowed_origin("https://dev.power.stream")
+  }
+}
+
+pub fn add_storyteller(cors: Cors, is_production: bool) -> Cors {
+  // TODO: Remove non-SSL "http://" from production in safe rollout
+  if is_production {
+    cors
+        // Storyteller.io (Production)
+        .allowed_origin("http://api.storyteller.io")
+        .allowed_origin("http://storyteller.io")
+        .allowed_origin("https://api.storyteller.io")
+        .allowed_origin("https://storyteller.io")
+        // Storyteller.io (Staging)
+        .allowed_origin("http://staging.storyteller.io")
+        .allowed_origin("https://staging.storyteller.io")
+        // Storyteller.io (Development Proxy)
+        .allowed_origin("http://development-proxy.storyteller.io")
+        .allowed_origin("https://development-proxy.storyteller.io")
+  } else {
+    cors
+        // Storyteller.io (Development)
+        .allowed_origin("http://dev.storyteller.io")
+        .allowed_origin("https://dev.storyteller.io")
+  }
+}
+
+pub fn add_legacy_storyteller_stream(cors: Cors, is_production: bool) -> Cors {
+  // TODO: Remove non-SSL "http://" from production in safe rollout
+  if is_production {
+    cors
+        // Storyteller.stream (Production)
+        .allowed_origin("http://api.storyteller.stream")
+        .allowed_origin("http://obs.storyteller.stream")
+        .allowed_origin("http://storyteller.stream")
+        .allowed_origin("http://ws.storyteller.stream")
+        .allowed_origin("https://api.storyteller.stream")
+        .allowed_origin("https://obs.storyteller.stream")
+        .allowed_origin("https://storyteller.stream")
+        .allowed_origin("https://ws.storyteller.stream")
+        // Storyteller.stream (Staging)
+        .allowed_origin("http://staging.obs.storyteller.stream")
+        .allowed_origin("http://staging.storyteller.stream")
+        .allowed_origin("https://staging.obs.storyteller.stream")
+        .allowed_origin("https://staging.storyteller.stream")
+        // Legacy "create.storyteller.io" (Production)
+        .allowed_origin("http://create.storyteller.io")
+        .allowed_origin("http://obs.storyteller.io")
+        .allowed_origin("http://ws.storyteller.io")
+        .allowed_origin("https://create.storyteller.io")
+        .allowed_origin("https://obs.storyteller.io")
+        .allowed_origin("https://ws.storyteller.io")
+  } else {
+    cors // NB: None!
+  }
+}
+
+pub fn add_legacy_vocodes(cors: Cors, is_production: bool) -> Cors {
+  if is_production {
+    cors
+        // Vocodes (Production)
+        .allowed_origin("https://api.vo.codes")
+        .allowed_origin("https://vo.codes")
+        .allowed_origin("https://vocodes.com")
+  } else {
+    cors
+        // Vocodes (Development)
+        .allowed_origin("http://dev.api.vo.codes")
+        .allowed_origin("http://dev.vo.codes")
+        .allowed_origin("https://dev.api.vo.codes")
+        .allowed_origin("https://dev.vo.codes")
+  }
+}
+
+pub fn add_legacy_trumped(cors: Cors, is_production: bool) -> Cors {
+  if is_production {
+    cors
+        // Trumped (Production)
+        .allowed_origin("https://trumped.com")
+  } else {
+    cors
+        // Trumped (Development)
+        .allowed_origin("http://dev.trumped.com")
+        .allowed_origin("https://dev.trumped.com")
+  }
+}
+
+pub fn add_development_only(cors: Cors) -> Cors {
+  cors
       // Local Development (Localhost)
       .allowed_origin("http://localhost:12345")
       .allowed_origin("http://localhost:3000")
@@ -33,79 +197,98 @@ pub fn build_common_cors_config() -> Cors {
       .allowed_origin("https://jungle.horse")
       .allowed_origin("https://obs.jungle.horse")
       .allowed_origin("https://ws.jungle.horse")
-      // FakeYou
-      .allowed_origin("http://api.fakeyou.com")
-      .allowed_origin("http://fakeyou.com")
-      .allowed_origin("https://api.fakeyou.com")
-      .allowed_origin("https://fakeyou.com")
-      // FakeYou (Staging)
-      .allowed_origin("http://staging.fakeyou.com")
-      .allowed_origin("https://staging.fakeyou.com")
-      // FakeYou (Development)
-      .allowed_origin("http://development.fakeyou.com")
-      .allowed_origin("https://development.fakeyou.com")
-      .allowed_origin("http://dev.fakeyou.com")
-      .allowed_origin("https://dev.fakeyou.com")
-      // FakeYou (Development Proxy)
-      .allowed_origin("http://development-proxy.fakeyou.com")
-      .allowed_origin("https://development-proxy.fakeyou.com")
-      // Storyteller.io
-      .allowed_origin("http://api.storyteller.io")
-      .allowed_origin("http://create.storyteller.io")
-      .allowed_origin("http://obs.storyteller.io")
-      .allowed_origin("http://storyteller.io")
-      .allowed_origin("http://ws.storyteller.io")
-      .allowed_origin("https://api.storyteller.io")
-      .allowed_origin("https://create.storyteller.io")
-      .allowed_origin("https://obs.storyteller.io")
-      .allowed_origin("https://storyteller.io")
-      .allowed_origin("https://ws.storyteller.io")
-      // Storyteller.io (Staging)
-      .allowed_origin("http://staging.storyteller.io")
-      .allowed_origin("https://staging.storyteller.io")
-      // Storyteller.io (Development)
-      .allowed_origin("http://development.storyteller.io")
-      .allowed_origin("https://development.storyteller.io")
-      .allowed_origin("http://dev.storyteller.io")
-      .allowed_origin("https://dev.storyteller.io")
-      // Storyteller.io (Development Proxy)
-      .allowed_origin("http://development-proxy.storyteller.io")
-      .allowed_origin("https://development-proxy.storyteller.io")
-      // Storyteller.stream
-      .allowed_origin("http://api.storyteller.stream")
-      .allowed_origin("http://obs.storyteller.stream")
-      .allowed_origin("http://storyteller.stream")
-      .allowed_origin("http://ws.storyteller.stream")
-      .allowed_origin("https://api.storyteller.stream")
-      .allowed_origin("https://obs.storyteller.stream")
-      .allowed_origin("https://storyteller.stream")
-      .allowed_origin("https://ws.storyteller.stream")
-      // Storyteller.stream (Staging)
-      .allowed_origin("http://staging.obs.storyteller.stream")
-      .allowed_origin("http://staging.storyteller.stream")
-      .allowed_origin("https://staging.obs.storyteller.stream")
-      .allowed_origin("https://staging.storyteller.stream")
-      // Trumped (legacy)
-      .allowed_origin("http://trumped.com")
-      .allowed_origin("https://trumped.com")
-      // Vocodes (legacy)
-      .allowed_origin("http://api.vo.codes")
-      .allowed_origin("http://mumble.stream")
-      .allowed_origin("http://vo.codes")
-      .allowed_origin("http://vocodes.com")
-      .allowed_origin("https://api.vo.codes")
-      .allowed_origin("https://mumble.stream")
-      .allowed_origin("https://vo.codes")
-      .allowed_origin("https://vocodes.com")
-      // Remaining setup
-      .allowed_methods(vec!["GET", "POST", "OPTIONS", "DELETE"])
-      .supports_credentials()
-      .allowed_headers(vec![
-        http::header::ACCEPT,
-        http::header::ACCESS_CONTROL_ALLOW_ORIGIN, // Tabulator Ajax
-        http::header::CONTENT_TYPE,
-        http::header::ACCESS_CONTROL_ALLOW_CREDENTIALS, // https://stackoverflow.com/a/46412839
-        http::header::HeaderName::from_static("x-requested-with") // Tabulator Ajax sends
-      ])
-      .max_age(3600)
-}
\ No newline at end of file
+}
+
+#[cfg(test)]
+mod tests {
+  use actix_cors::Cors;
+  use actix_web::dev::{Service, ServiceRequest, ServiceResponse, Transform};
+  use actix_web::http::StatusCode;
+  use actix_web::test::TestRequest;
+  use actix_web::{Error, test};
+  use crate::cors::build_cors_config;
+  use reusable_types::server_environment::ServerEnvironment;
+  use speculoos::{assert_that, asserting};
+
+  async fn make_test_request(cors: &Cors, hostname: &str) -> ServiceResponse {
+    let cors= cors.new_transform(test::ok_service())
+        .await
+        .unwrap();
+
+    let request = TestRequest::default()
+        .insert_header(("Origin", hostname))
+        .to_srv_request();
+
+    test::call_service(&cors, request).await
+  }
+
+  async fn assert_origin_ok(cors: &Cors, hostname: &str) {
+    let response = make_test_request(cors, hostname).await;
+    asserting(&format!("Hostname {} is valid", hostname))
+        .that(&response.status())
+        .is_equal_to(StatusCode::OK);
+  }
+
+  async fn assert_origin_invalid(cors: &Cors, hostname: &str) {
+    let response = make_test_request(cors, hostname).await;
+    asserting(&format!("Hostname {} is invalid", hostname))
+        .that(&response.status())
+        .is_equal_to(StatusCode::BAD_REQUEST);
+  }
+
+  #[actix_rt::test]
+  async fn test_fakeyou_production() {
+    let production_cors = build_cors_config(ServerEnvironment::Production);
+
+    // Valid Origin
+    assert_origin_ok(&production_cors, "https://fakeyou.com").await;
+    assert_origin_ok(&production_cors, "https://api.fakeyou.com").await;
+    assert_origin_ok(&production_cors, "https://staging.fakeyou.com").await;
+
+    // Invalid Origin
+    assert_origin_invalid(&production_cors, "https://fake.fakeyou.com").await;
+    assert_origin_invalid(&production_cors, "https://jungle.horse").await;
+    assert_origin_invalid(&production_cors, "http://localhost:54321").await;
+  }
+
+  #[actix_rt::test]
+  async fn test_fakeyou_development() {
+    let development_cors = build_cors_config(ServerEnvironment::Development);
+
+    // Valid Origin
+    assert_origin_ok(&development_cors, "https://dev.fakeyou.com").await;
+    assert_origin_ok(&development_cors, "http://localhost:54321").await;
+
+    // Invalid Origin
+    assert_origin_invalid(&development_cors, "https://fakeyou.com").await;
+    assert_origin_invalid(&development_cors, "https://api.fakeyou.com").await;
+    assert_origin_invalid(&development_cors, "https://staging.fakeyou.com").await;
+  }
+
+  #[actix_rt::test]
+  async fn test_storyteller_production() {
+    let production_cors = build_cors_config(ServerEnvironment::Production);
+
+    // Valid Origin
+    assert_origin_ok(&production_cors, "https://storyteller.io").await;
+    assert_origin_ok(&production_cors, "https://api.storyteller.io").await;
+    assert_origin_ok(&production_cors, "https://staging.storyteller.io").await;
+
+    // Invalid Origin
+    assert_origin_invalid(&production_cors, "https://dev.storyteller.io").await;
+    assert_origin_invalid(&production_cors, "http://dev.storyteller.io").await;
+  }
+
+  #[actix_rt::test]
+  async fn test_storyteller_development() {
+    let development_cors = build_cors_config(ServerEnvironment::Development);
+
+    // Valid Origin
+    assert_origin_ok(&development_cors, "https://dev.storyteller.io").await;
+    assert_origin_ok(&development_cors, "http://localhost:54321").await;
+
+    // Invalid Origin
+    assert_origin_invalid(&development_cors, "https://storyteller.io").await;
+    assert_origin_invalid(&development_cors, "https://staging.storyteller.io").await;
+  }
+}
diff --git a/crates/lib/reusable_types/src/lib.rs b/crates/lib/reusable_types/src/lib.rs
index d29d22ea65..25a7163e22 100644
--- a/crates/lib/reusable_types/src/lib.rs
+++ b/crates/lib/reusable_types/src/lib.rs
@@ -19,4 +19,5 @@ pub mod generic_download_type;
 pub mod stripe;
 pub mod vocoder_type;
 
-#[cfg(test)] pub mod test_helpers;
\ No newline at end of file
+#[cfg(test)] pub mod test_helpers;
+pub mod server_environment;
diff --git a/crates/lib/url_config/src/server_environment.rs b/crates/lib/reusable_types/src/server_environment.rs
similarity index 73%
rename from crates/lib/url_config/src/server_environment.rs
rename to crates/lib/reusable_types/src/server_environment.rs
index faaf7bd798..affaede563 100644
--- a/crates/lib/url_config/src/server_environment.rs
+++ b/crates/lib/reusable_types/src/server_environment.rs
@@ -17,9 +17,20 @@ impl ServerEnvironment {
         match environment {
             "dev" | "DEV" | "development" | "DEVELOPMENT" => Some(ServerEnvironment::Development),
             "prod" | "PROD" | "production" | "PRODUCTION" => Some(ServerEnvironment::Production),
+            // "stage" | "STAGE" | "staging" | "STAGING" => Some(ServerEnvironment::Staging),
             _ => None,
         }
     }
+
+    /// Reports whether the software is running in production.
+    /// This is useful once proper "staging" backends gets introduced, as currently staging frontend
+    /// is served by the production backend.
+    pub fn is_deployed_in_production(&self) -> bool {
+        match self {
+            ServerEnvironment::Development => false,
+            ServerEnvironment::Production => true,
+        }
+    }
 }
 
 #[cfg(test)]
@@ -49,4 +60,10 @@ mod tests {
         assert_eq!(ServerEnvironment::from_str("pRoDs"), None);
         assert_eq!(ServerEnvironment::from_str("staging"), None);
     }
+
+    #[test]
+    fn test_is_deployed_in_production() {
+        assert_eq!(true, ServerEnvironment::Production.is_deployed_in_production());
+        assert_eq!(false, ServerEnvironment::Development.is_deployed_in_production());
+    }
 }
diff --git a/crates/lib/url_config/Cargo.toml b/crates/lib/url_config/Cargo.toml
index 22eae0bff6..534cbb5ff3 100644
--- a/crates/lib/url_config/Cargo.toml
+++ b/crates/lib/url_config/Cargo.toml
@@ -16,6 +16,7 @@ path = "src/lib.rs"
 
 # Internal
 http_server_common = { path = "../../lib/http_server_common" }
+reusable_types = { path = "../../lib/reusable_types" }
 
 # External
 actix-web = "4.0.0-beta.10"
diff --git a/crates/lib/url_config/src/lib.rs b/crates/lib/url_config/src/lib.rs
index 3bd23523b0..068a15ae3a 100644
--- a/crates/lib/url_config/src/lib.rs
+++ b/crates/lib/url_config/src/lib.rs
@@ -51,5 +51,4 @@ Here are the domain names we handle:
 #![allow(dead_code)]
 #![allow(non_snake_case)]
 
-pub mod server_environment;
 pub mod third_party_url_redirector;
diff --git a/crates/lib/url_config/src/third_party_url_redirector.rs b/crates/lib/url_config/src/third_party_url_redirector.rs
index 49c53405d2..6f919c8b45 100644
--- a/crates/lib/url_config/src/third_party_url_redirector.rs
+++ b/crates/lib/url_config/src/third_party_url_redirector.rs
@@ -1,8 +1,8 @@
 use actix_web::HttpRequest;
 use actix_web::http::Uri;
 use anyhow::anyhow;
-use crate::server_environment::ServerEnvironment;
 use http_server_common::request::get_request_host::get_request_host;
+use reusable_types::server_environment::ServerEnvironment;
 use std::ops::Deref;
 use std::str::FromStr;
 
@@ -79,7 +79,7 @@ mod tests {
     use actix_web::HttpRequest;
     use actix_web::http::header::HOST;
     use actix_web::test::TestRequest;
-    use crate::server_environment::ServerEnvironment;
+    use reusable_types::server_environment::ServerEnvironment;
     use crate::third_party_url_redirector::ThirdPartyUrlRedirector;
 
     fn request_with_host(hostname: &str) -> HttpRequest {
diff --git a/crates/plugins/billing/src/stripe/http_endpoints/checkout/create/stripe_create_checkout_session_json_handler.rs b/crates/plugins/billing/src/stripe/http_endpoints/checkout/create/stripe_create_checkout_session_json_handler.rs
index cedab33f53..18dbfdb51e 100644
--- a/crates/plugins/billing/src/stripe/http_endpoints/checkout/create/stripe_create_checkout_session_json_handler.rs
+++ b/crates/plugins/billing/src/stripe/http_endpoints/checkout/create/stripe_create_checkout_session_json_handler.rs
@@ -16,7 +16,7 @@ use sqlx::MySqlPool;
 use std::collections::HashMap;
 use std::fmt;
 use stripe::{CheckoutSession, CheckoutSessionMode, CreateCheckoutSession, CreateCheckoutSessionLineItems};
-use url_config::server_environment::ServerEnvironment;
+use reusable_types::server_environment::ServerEnvironment;
 use url_config::third_party_url_redirector::ThirdPartyUrlRedirector;
 
 // =============== Request ===============
diff --git a/crates/plugins/billing/src/stripe/http_endpoints/checkout/create/stripe_create_checkout_session_redirect_handler.rs b/crates/plugins/billing/src/stripe/http_endpoints/checkout/create/stripe_create_checkout_session_redirect_handler.rs
index dd9a622a56..878c226f3b 100644
--- a/crates/plugins/billing/src/stripe/http_endpoints/checkout/create/stripe_create_checkout_session_redirect_handler.rs
+++ b/crates/plugins/billing/src/stripe/http_endpoints/checkout/create/stripe_create_checkout_session_redirect_handler.rs
@@ -15,7 +15,7 @@ use sqlx::MySqlPool;
 use std::collections::HashMap;
 use std::fmt;
 use stripe::{CheckoutSession, CheckoutSessionMode, CreateCheckoutSession, CreateCheckoutSessionLineItems};
-use url_config::server_environment::ServerEnvironment;
+use reusable_types::server_environment::ServerEnvironment;
 use url_config::third_party_url_redirector::ThirdPartyUrlRedirector;
 
 // =============== Request ===============
diff --git a/crates/plugins/billing/src/stripe/http_endpoints/checkout/create/stripe_create_checkout_session_shared.rs b/crates/plugins/billing/src/stripe/http_endpoints/checkout/create/stripe_create_checkout_session_shared.rs
index 30e2b98ae8..d1a8bd491f 100644
--- a/crates/plugins/billing/src/stripe/http_endpoints/checkout/create/stripe_create_checkout_session_shared.rs
+++ b/crates/plugins/billing/src/stripe/http_endpoints/checkout/create/stripe_create_checkout_session_shared.rs
@@ -11,7 +11,7 @@ use sqlx::MySqlPool;
 use std::collections::HashMap;
 use std::str::FromStr;
 use stripe::{CheckoutSession, CheckoutSessionMode, CreateCheckoutSession, CreateCheckoutSessionAutomaticTax, CreateCheckoutSessionLineItems, CreateCheckoutSessionPaymentIntentData, CreateCheckoutSessionSubscriptionData, CustomerId, ParseIdError};
-use url_config::server_environment::ServerEnvironment;
+use reusable_types::server_environment::ServerEnvironment;
 use url_config::third_party_url_redirector::ThirdPartyUrlRedirector;
 
 /// Create a checkout session and return the URL
@@ -190,7 +190,7 @@ mod tests {
   use crate::stripe::traits::internal_user_lookup::{MockInternalUserLookup, UserMetadata};
   use mockall::predicate::*;
   use tokio;
-  use url_config::server_environment::ServerEnvironment;
+  use reusable_types::server_environment::ServerEnvironment;
   use url_config::third_party_url_redirector::ThirdPartyUrlRedirector;
 
   #[tokio::test]
diff --git a/crates/plugins/billing/src/stripe/traits/internal_product_to_stripe_lookup.rs b/crates/plugins/billing/src/stripe/traits/internal_product_to_stripe_lookup.rs
index 31731532f3..dfffcfeefd 100644
--- a/crates/plugins/billing/src/stripe/traits/internal_product_to_stripe_lookup.rs
+++ b/crates/plugins/billing/src/stripe/traits/internal_product_to_stripe_lookup.rs
@@ -3,7 +3,7 @@ use mockall::{automock, mock, predicate::*};
 
 use std::error::Error;
 use std::fmt::{Display, Formatter};
-use url_config::server_environment::ServerEnvironment;
+use reusable_types::server_environment::ServerEnvironment;
 
 /// Errors for this component are not strongly typed.
 #[derive(Debug)]
diff --git a/crates/service/image_generation_service/src/main.rs b/crates/service/image_generation_service/src/main.rs
index 5461973fcc..16748931a7 100644
--- a/crates/service/image_generation_service/src/main.rs
+++ b/crates/service/image_generation_service/src/main.rs
@@ -27,7 +27,7 @@ use config::shared_constants::{DEFAULT_MYSQL_CONNECTION_STRING, DEFAULT_RUST_LOG
 use container_common::anyhow_result::AnyhowResult;
 use crate::routes::add_routes;
 use crate::server_state::{EnvConfig, InMemoryCaches, ServerState};
-use http_server_common::cors::build_common_cors_config;
+use http_server_common::cors::build_production_cors_config;
 use limitation::Limiter;
 use log::info;
 use memory_caching::single_item_ttl_cache::SingleItemTtlCache;
@@ -227,7 +227,7 @@ pub async fn serve(server_state: ServerState) -> AnyhowResult<()>
 
     let app = App::new()
         .app_data(server_state_arc.clone())
-        .wrap(build_common_cors_config())
+        .wrap(build_production_cors_config())
         .wrap(DefaultHeaders::new()
             .header("X-Backend-Hostname", &hostname)
             .header("X-Build-Sha", build_sha.trim()))
diff --git a/crates/service/storyteller_web/src/billing/internal_product_to_stripe_lookup_impl.rs b/crates/service/storyteller_web/src/billing/internal_product_to_stripe_lookup_impl.rs
index 52a0cbc54d..ba95bc9678 100644
--- a/crates/service/storyteller_web/src/billing/internal_product_to_stripe_lookup_impl.rs
+++ b/crates/service/storyteller_web/src/billing/internal_product_to_stripe_lookup_impl.rs
@@ -1,6 +1,6 @@
 use billing_component::stripe::traits::internal_product_to_stripe_lookup::{InternalProductToStripeLookup, StripeProduct, StripeProductLookupError};
 use crate::configs::plans::plan_list::{ALL_PLANS_BY_SLUG, DEVELOPMENT_PREMIUM_PLANS_BY_SLUG, PRODUCTION_PREMIUM_PLANS_BY_SLUG};
-use url_config::server_environment::ServerEnvironment;
+use reusable_types::server_environment::ServerEnvironment;
 
 /// A simple Actix injectable action
 #[derive(Clone, Copy)]
diff --git a/crates/service/storyteller_web/src/configs/plans/get_correct_plan_for_session.rs b/crates/service/storyteller_web/src/configs/plans/get_correct_plan_for_session.rs
index 44b0722950..8b4df804c3 100644
--- a/crates/service/storyteller_web/src/configs/plans/get_correct_plan_for_session.rs
+++ b/crates/service/storyteller_web/src/configs/plans/get_correct_plan_for_session.rs
@@ -1,8 +1,8 @@
-use std::ops::Deref;
 use chrono::Utc;
 use crate::configs::plans::plan::Plan;
 use crate::configs::plans::plan_list::{DEVELOPMENT_PREMIUM_PLANS, DEVELOPMENT_PREMIUM_PLANS_BY_SLUG, FREE_LOGGED_IN_PLAN, FREE_LOGGED_OUT_PLAN, LOYALTY_PLANS_BY_SLUG, PRODUCTION_PREMIUM_PLANS, PRODUCTION_PREMIUM_PLANS_BY_SLUG};
-use url_config::server_environment::ServerEnvironment;
+use reusable_types::server_environment::ServerEnvironment;
+use std::ops::Deref;
 use users_component::utils::user_session_extended::{UserSessionExtended, UserSessionSubscriptionPlan};
 
 /// Look up the most appropriate plan for the session.
@@ -64,7 +64,7 @@ pub mod tests {
   use chrono::{Duration, Utc};
   use crate::configs::plans::get_correct_plan_for_session::get_correct_plan_for_session;
   use crate::configs::plans::plan_list::{ALL_PLANS_BY_SLUG, FREE_LOGGED_IN_PLAN, FREE_LOGGED_OUT_PLAN};
-  use url_config::server_environment::ServerEnvironment;
+  use reusable_types::server_environment::ServerEnvironment;
   use users_component::utils::user_session_extended::{UserSessionExtended, UserSessionSubscriptionPlan};
 
   #[test]
diff --git a/crates/service/storyteller_web/src/main.rs b/crates/service/storyteller_web/src/main.rs
index 0efdd977e9..8398c8bd22 100644
--- a/crates/service/storyteller_web/src/main.rs
+++ b/crates/service/storyteller_web/src/main.rs
@@ -68,13 +68,14 @@ use crate::util::encrypted_sort_id::SortKeyCrypto;
 use database_queries::mediators::badge_granter::BadgeGranter;
 use database_queries::mediators::firehose_publisher::FirehosePublisher;
 use futures::Future;
-use http_server_common::cors::build_common_cors_config;
+use http_server_common::cors::{build_cors_config, build_production_cors_config};
 use limitation::Limiter;
 use log::{error, info};
 use memory_caching::single_item_ttl_cache::SingleItemTtlCache;
 use r2d2_redis::RedisConnectionManager;
 use r2d2_redis::r2d2;
 use r2d2_redis::redis::Commands;
+use reusable_types::server_environment::ServerEnvironment;
 use sqlx::MySqlPool;
 use sqlx::mysql::MySqlPoolOptions;
 use std::sync::Arc;
@@ -82,7 +83,6 @@ use std::time::Duration;
 use storage_buckets_common::bucket_client::BucketClient;
 use tokio::runtime::Runtime;
 use twitch_common::twitch_secrets::TwitchSecrets;
-use url_config::server_environment::ServerEnvironment;
 use url_config::third_party_url_redirector::ThirdPartyUrlRedirector;
 use users_component::utils::session_checker::SessionChecker;
 use users_component::utils::session_cookie_manager::SessionCookieManager;
@@ -438,7 +438,7 @@ pub async fn serve(server_state: ServerState) -> AnyhowResult<()>
       .app_data(web::Data::from(stripe_lookup)) // NB: Data::from(Arc<T>) for dynamic dispatch
       .app_data(web::Data::from(user_lookup)) // NB: Data::from(Arc<T>) for dynamic dispatch
       .app_data(server_state_arc.clone())
-      .wrap(build_common_cors_config())
+      .wrap(build_cors_config(server_state_arc.server_environment.clone()))
       .wrap(DefaultHeaders::new()
         .header("X-Backend-Hostname", &hostname)
         .header("X-Build-Sha", build_sha.trim()))
diff --git a/crates/service/storyteller_web/src/server_state.rs b/crates/service/storyteller_web/src/server_state.rs
index cf04bc7e43..11ff27bf89 100644
--- a/crates/service/storyteller_web/src/server_state.rs
+++ b/crates/service/storyteller_web/src/server_state.rs
@@ -12,9 +12,9 @@ use database_queries::queries::tts::tts_inference_jobs::get_pending_tts_inferenc
 use database_queries::queries::w2l::w2l_templates::list_w2l_templates::W2lTemplateRecordForList;
 use memory_caching::single_item_ttl_cache::SingleItemTtlCache;
 use r2d2_redis::{r2d2, RedisConnectionManager};
+use reusable_types::server_environment::ServerEnvironment;
 use sqlx::MySqlPool;
 use storage_buckets_common::bucket_client::BucketClient;
-use url_config::server_environment::ServerEnvironment;
 use url_config::third_party_url_redirector::ThirdPartyUrlRedirector;
 use users_component::utils::session_checker::SessionChecker;
 use users_component::utils::session_cookie_manager::SessionCookieManager;
diff --git a/crates/service/websocket_gateway/src/main.rs b/crates/service/websocket_gateway/src/main.rs
index f7e17007fa..42e16ecf8f 100644
--- a/crates/service/websocket_gateway/src/main.rs
+++ b/crates/service/websocket_gateway/src/main.rs
@@ -28,7 +28,7 @@ use crate::endpoints_ws::obs_gateway_websocket_handler::obs_gateway_websocket_ha
 use crate::server_state::{ObsGatewayServerState, EnvConfig, TwitchOauthSecrets, BackendsConfig, MultithreadingConfig};
 use futures::Future;
 use futures::executor::ThreadPool;
-use http_server_common::cors::build_common_cors_config;
+use http_server_common::cors::build_production_cors_config;
 use http_server_common::endpoints::default_route_404::default_route_404;
 use http_server_common::endpoints::root_index::get_root_index;
 use limitation::Limiter;
@@ -165,7 +165,7 @@ pub async fn serve(server_state: ObsGatewayServerState) -> AnyhowResult<()>
   HttpServer::new(move || {
     App::new()
         .app_data(server_state_arc.clone())
-        .wrap(build_common_cors_config())
+        .wrap(build_production_cors_config())
         .wrap(Logger::new(&log_format)
             .exclude("/liveness")
             .exclude("/readiness"))