Make the request initiator Optional

content/browser/service_worker/service_worker_url_request_job.cc

Index: content/browser/service_worker/service_worker_url_request_job.cc
diff --git a/content/browser/service_worker/service_worker_url_request_job.cc b/content/browser/service_worker/service_worker_url_request_job.cc
index f7a4680fd3cbeb2f54df04a18968758888bcefaf..16778d26739136d949d32e684a2a0c62fd3b3b23 100644
--- a/content/browser/service_worker/service_worker_url_request_job.cc
+++ b/content/browser/service_worker/service_worker_url_request_job.cc
@@ -772,8 +772,9 @@ bool ServiceWorkerURLRequestJob::IsFallbackToRendererNeeded() const {
          fetch_type_ != ServiceWorkerFetchType::FOREIGN_FETCH &&
          (request_mode_ == FETCH_REQUEST_MODE_CORS ||
           request_mode_ == FETCH_REQUEST_MODE_CORS_WITH_FORCED_PREFLIGHT) &&
-         !request()->initiator().IsSameOriginWith(
-             url::Origin(request()->url()));
+         (!request()->initiator() ||
+          !request()->initiator()->IsSameOriginWith(
+              url::Origin(request()->url())));
 }
 
 void ServiceWorkerURLRequestJob::SetResponseBodyType(ResponseBodyType type) {