diff --git a/.github/workflows/prod-build.yml b/.github/workflows/prod-build.yml
index d9ec669a63ea..bff3049c1bb9 100644
--- a/.github/workflows/prod-build.yml
+++ b/.github/workflows/prod-build.yml
@@ -360,6 +360,7 @@ jobs:
             --set-env-vars="ORIGIN_PLAY=mdnplay.dev" \
             --set-env-vars="SOURCE_CONTENT=https://storage.googleapis.com/${{ vars.GCP_BUCKET_NAME }}/main/" \
             --set-env-vars="SOURCE_API=https://api.developer.mozilla.org/" \
+            --set-env-vars="ORIGIN_TRIAL_TOKEN=A9YWJd0eN0+JyqsF5/4sYlFePcOgkAIKtGSnrERJ7zmzK65fqcrdYjmHUlxAV79Fphmwt96Gkyw2F1WmMEUEztgAAABdeyJvcmlnaW4iOiJodHRwczovL2RldmVsb3Blci5tb3ppbGxhLm9yZyIsImZlYXR1cmUiOiJQcml2YXRlQXR0cmlidXRpb24iLCJleHBpcnkiOjE3NDk3NDMyNjF9" \
             --set-env-vars="BSA_ENABLED=true" \
             --set-env-vars="SENTRY_DSN=${{ secrets.SENTRY_DSN_CLOUD_FUNCTION }}" \
             --set-env-vars="SENTRY_ENVIRONMENT=prod" \
diff --git a/.github/workflows/stage-build.yml b/.github/workflows/stage-build.yml
index 5cada942e5ff..d720dba3e4f3 100644
--- a/.github/workflows/stage-build.yml
+++ b/.github/workflows/stage-build.yml
@@ -376,6 +376,7 @@ jobs:
             --set-env-vars="ORIGIN_PLAY=mdnyalp.dev" \
             --set-env-vars="SOURCE_CONTENT=https://storage.googleapis.com/${{ vars.GCP_BUCKET_NAME }}/main/" \
             --set-env-vars="SOURCE_API=https://api.developer.allizom.org/" \
+            --set-env-vars="ORIGIN_TRIAL_TOKEN=A708kbzhofFLGMe7BHKr3aym5saxaywBDqhAzxv4vU9sM6B49iYwec+xy2Y3Imt0+nhR03/jmbuNY0BRvM+Ng5cAAABdeyJvcmlnaW4iOiJodHRwczovL2RldmVsb3Blci5hbGxpem9tLm9yZyIsImZlYXR1cmUiOiJQcml2YXRlQXR0cmlidXRpb24iLCJleHBpcnkiOjE3NDk3NDMzMDB9" \
             --set-env-vars="BSA_ENABLED=true" \
             --set-env-vars="SENTRY_DSN=${{ secrets.SENTRY_DSN_CLOUD_FUNCTION }}" \
             --set-env-vars="SENTRY_ENVIRONMENT=stage" \
diff --git a/cloud-function/src/env.ts b/cloud-function/src/env.ts
index d70ec2088043..4f88750106be 100644
--- a/cloud-function/src/env.ts
+++ b/cloud-function/src/env.ts
@@ -64,6 +64,10 @@ export function sourceUri(source: Source): string {
   }
 }
 
+// Origin trial.
+export const ORIGIN_TRIAL_TOKEN: string | undefined =
+  process.env["ORIGIN_TRIAL_TOKEN"];
+
 // Kevel.
 export const KEVEL_SITE_ID = Number(process.env["KEVEL_SITE_ID"] ?? 0);
 export const KEVEL_NETWORK_ID = Number(process.env["KEVEL_NETWORK_ID"] ?? 0);
diff --git a/cloud-function/src/headers.ts b/cloud-function/src/headers.ts
index aaaee28d7145..9deeebc3fa95 100644
--- a/cloud-function/src/headers.ts
+++ b/cloud-function/src/headers.ts
@@ -5,6 +5,7 @@ import {
   PLAYGROUND_UNSAFE_CSP_VALUE,
 } from "./internal/constants/index.js";
 import { isLiveSampleURL } from "./utils.js";
+import { ORIGIN_TRIAL_TOKEN } from "./env.js";
 
 const HASHED_MAX_AGE = 60 * 60 * 24 * 365;
 const DEFAULT_MAX_AGE = 60 * 60;
@@ -94,6 +95,7 @@ export function setContentResponseHeaders(
     ["Strict-Transport-Security", "max-age=63072000"],
     ...(csp ? [["Content-Security-Policy", CSP_VALUE]] : []),
     ...(xFrame ? [["X-Frame-Options", "DENY"]] : []),
+    ...(ORIGIN_TRIAL_TOKEN ? [["Origin-Trial", ORIGIN_TRIAL_TOKEN]] : []),
   ].forEach(([k, v]) => k && v && setHeader(k, v));
 }