diff --git a/scripts/playwright-webserver-command.sh b/scripts/playwright-webserver-command.sh
index 8c00909b..35d5fd38 100755
--- a/scripts/playwright-webserver-command.sh
+++ b/scripts/playwright-webserver-command.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 if [ -n "$USE_DOCKER" ]; then
     set -ex
-    yarn build
+    yarn build --mode development
     docker build -t element-call:testing .
     exec docker run --rm --name element-call-testing -p 8080:8080 -v ./config/config.devenv.json:/app/config.json:ro,Z element-call:testing
 else
diff --git a/src/state/initialMuteState.ts b/src/state/initialMuteState.ts
index f7582daa..5fdc6a6f 100644
--- a/src/state/initialMuteState.ts
+++ b/src/state/initialMuteState.ts
@@ -19,7 +19,7 @@ export function calculateInitialMuteState(
   urlParams: Pick<UrlParams, "skipLobby" | "callIntent">,
   packageType: "full" | "embedded",
   hostname: string | undefined = undefined,
-  trustLocalhost: boolean = import.meta.env.DEV || !!process.env.CI,
+  trustLocalhost: boolean = import.meta.env.DEV,
 ): { audioEnabled: boolean; videoEnabled: boolean } {
   const { skipLobby, callIntent } = urlParams;