diff --git a/build/gulpfile.vscode.web.js b/build/gulpfile.vscode.web.js
index bf45fc26cd2..8b22be3d203 100644
--- a/build/gulpfile.vscode.web.js
+++ b/build/gulpfile.vscode.web.js
@@ -42,8 +42,7 @@ const vscodeWebResourceIncludes = [
'out-build/vs/workbench/contrib/webview/browser/pre/*.html',
// Extension Worker
- 'out-build/vs/workbench/services/extensions/worker/httpsWebWorkerExtensionHostIframe.html',
- 'out-build/vs/workbench/services/extensions/worker/httpWebWorkerExtensionHostIframe.html',
+ 'out-build/vs/workbench/services/extensions/worker/webWorkerExtensionHostIframe.html',
// Web node paths (needed for integration tests)
'out-build/vs/webPackagePaths.js',
diff --git a/src/vs/server/webClientServer.ts b/src/vs/server/webClientServer.ts
index 703446e6f6f..d2d03c7cc67 100644
--- a/src/vs/server/webClientServer.ts
+++ b/src/vs/server/webClientServer.ts
@@ -210,7 +210,7 @@ export class WebClientServer {
'default-src \'self\';',
'img-src \'self\' https: data: blob:;',
'media-src \'none\';',
- `script-src 'self' 'unsafe-eval' ${this._getScriptCspHashes(data).join(' ')} 'sha256-cb2sg39EJV8ABaSNFfWu/ou8o1xVXYK7jp90oZ9vpcg=' http://${remoteAuthority};`, // the sha is the same as in src/vs/workbench/services/extensions/worker/httpWebWorkerExtensionHostIframe.html
+ `script-src 'self' 'unsafe-eval' ${this._getScriptCspHashes(data).join(' ')} 'sha256-cb2sg39EJV8ABaSNFfWu/ou8o1xVXYK7jp90oZ9vpcg=' http://${remoteAuthority};`, // the sha is the same as in src/vs/workbench/services/extensions/worker/webWorkerExtensionHostIframe.html
'child-src \'self\';',
`frame-src 'self' https://*.vscode-webview.net ${this._productService.webEndpointUrl || ''} data:;`,
'worker-src \'self\' data:;',
diff --git a/src/vs/workbench/services/extensions/browser/webWorkerExtensionHost.ts b/src/vs/workbench/services/extensions/browser/webWorkerExtensionHost.ts
index e54225f7421..994b5ae7dbc 100644
--- a/src/vs/workbench/services/extensions/browser/webWorkerExtensionHost.ts
+++ b/src/vs/workbench/services/extensions/browser/webWorkerExtensionHost.ts
@@ -77,11 +77,7 @@ export class WebWorkerExtensionHost extends Disposable implements IExtensionHost
private _getWebWorkerExtensionHostIframeSrc(): string {
const suffix = this._environmentService.debugExtensionHost && this._environmentService.debugRenderer ? '?debugged=1' : '?';
- const iframeModulePath = (
- location.protocol === 'http:'
- ? 'vs/workbench/services/extensions/worker/httpWebWorkerExtensionHostIframe.html'
- : 'vs/workbench/services/extensions/worker/httpsWebWorkerExtensionHostIframe.html'
- );
+ const iframeModulePath = 'vs/workbench/services/extensions/worker/webWorkerExtensionHostIframe.html';
if (platform.isWeb) {
const webEndpointUrlTemplate = this._productService.webEndpointUrlTemplate;
const commit = this._productService.commit;
diff --git a/src/vs/workbench/services/extensions/worker/httpWebWorkerExtensionHostIframe.html b/src/vs/workbench/services/extensions/worker/httpWebWorkerExtensionHostIframe.html
deleted file mode 100644
index 2e054c71ff9..00000000000
--- a/src/vs/workbench/services/extensions/worker/httpWebWorkerExtensionHostIframe.html
+++ /dev/null
@@ -1,65 +0,0 @@
-
-
-
-
-
-
-
-
-
diff --git a/src/vs/workbench/services/extensions/worker/httpsWebWorkerExtensionHostIframe.html b/src/vs/workbench/services/extensions/worker/webWorkerExtensionHostIframe.html
similarity index 100%
rename from src/vs/workbench/services/extensions/worker/httpsWebWorkerExtensionHostIframe.html
rename to src/vs/workbench/services/extensions/worker/webWorkerExtensionHostIframe.html