diff --git a/packages/playwright-core/src/server/socksClientCertificatesInterceptor.ts b/packages/playwright-core/src/server/socksClientCertificatesInterceptor.ts
index e7c34e898c..be44a6c234 100644
--- a/packages/playwright-core/src/server/socksClientCertificatesInterceptor.ts
+++ b/packages/playwright-core/src/server/socksClientCertificatesInterceptor.ts
@@ -378,14 +378,6 @@ export class ClientCertificatesProxy {
   }
 }
 
-function normalizeOrigin(origin: string): string {
-  try {
-    return new URL(origin).origin;
-  } catch (error) {
-    return origin;
-  }
-}
-
 function convertClientCertificatesToTLSOptions(
   clientCertificates: types.BrowserContextOptions['clientCertificates']
 ): Pick<https.RequestOptions, 'pfx' | 'key' | 'cert'> | undefined {