diff --git a/third_party/blink/renderer/core/workers/worker_classic_script_loader.cc b/third_party/blink/renderer/core/workers/worker_classic_script_loader.cc
index 4b47f551f366..227c58a5629d 100644
--- a/third_party/blink/renderer/core/workers/worker_classic_script_loader.cc
+++ b/third_party/blink/renderer/core/workers/worker_classic_script_loader.cc
@@ -246,7 +246,6 @@ void WorkerClassicScriptLoader::ProcessContentSecurityPolicy(
   // document (which is implemented in WorkerMessagingProxy, and
   // m_contentSecurityPolicy should be left as nullptr to inherit the policy).
   if (!response.Url().ProtocolIs("blob") &&
-      !response.Url().ProtocolIs("file") &&
       !response.Url().ProtocolIs("filesystem")) {
     content_security_policy_ = ContentSecurityPolicy::Create();
     content_security_policy_->SetOverrideURLForSelf(response.Url());