Store the service worker script and its imports on first load... kinda

content/browser/service_worker/service_worker_request_handler.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/browser/service_worker/service_worker_request_handler.h"
 
 #include "content/browser/service_worker/service_worker_context_core.h"
 #include "content/browser/service_worker/service_worker_context_wrapper.h"
 #include "content/browser/service_worker/service_worker_provider_host.h"
 #include "content/browser/service_worker/service_worker_registration.h"
@@ skipping 20 matching lines @@
         ServiceWorkerRequestHandler::GetHandler(request);
     if (!handler)
       return NULL;
     return handler->MaybeCreateJob(request, network_delegate);
   }
 
  private:
   DISALLOW_COPY_AND_ASSIGN(ServiceWorkerRequestInterceptor);
 };
 
+bool IsMethodSupported(const std::string& method) {
+  return (method == "GET") || (method == "HEAD");
+}
+
+bool IsSchemeAndMethodSupported(const net::URLRequest* request) {
+  return request->url().SchemeIsHTTPOrHTTPS() &&
+         IsMethodSupported(request->method());
+}
+
 }  // namespace
 
 void ServiceWorkerRequestHandler::InitializeHandler(
     net::URLRequest* request,
     ServiceWorkerContextWrapper* context_wrapper,
     int process_id,
     int provider_id,
     ResourceType::Type resource_type) {
-  if (!ServiceWorkerUtils::IsFeatureEnabled())
+  if (!ServiceWorkerUtils::IsFeatureEnabled() ||
+      !IsSchemeAndMethodSupported(request)) {
     return;
+  }
 
   if (!context_wrapper || !context_wrapper->context() ||
       provider_id == kInvalidServiceWorkerProviderId) {
     return;
   }
 
   ServiceWorkerProviderHost* provider_host =
       context_wrapper->context()->GetProviderHost(process_id, provider_id);
   if (!provider_host)
     return;
@@ skipping 24 matching lines @@
 ServiceWorkerRequestHandler::ServiceWorkerRequestHandler(
     base::WeakPtr<ServiceWorkerContextCore> context,
     base::WeakPtr<ServiceWorkerProviderHost> provider_host,
     ResourceType::Type resource_type)
     : context_(context),
       provider_host_(provider_host),
       resource_type_(resource_type) {
 }
 
 }  // namespace content