[DevTools] Hide "Service Worker Fallback" response from the Network tab.

third_party/WebKit/Source/devtools/front_end/network/NetworkLogView.js

Index: third_party/WebKit/Source/devtools/front_end/network/NetworkLogView.js
diff --git a/third_party/WebKit/Source/devtools/front_end/network/NetworkLogView.js b/third_party/WebKit/Source/devtools/front_end/network/NetworkLogView.js
index 9d6afd296210ac21ba25f75a941ff1d43bb7ec9f..1f205435852044187fc012b5cd7cd2f0d583970e 100644
--- a/third_party/WebKit/Source/devtools/front_end/network/NetworkLogView.js
+++ b/third_party/WebKit/Source/devtools/front_end/network/NetworkLogView.js
@@ -1635,6 +1635,8 @@ WebInspector.NetworkLogView.prototype = {
             return false;
         if (this._dataURLFilterUI.checked() && request.parsedURL.isDataURL())
             return false;
+        if (request.statusText === "Service Worker Fallback Required")
+            return false;
         for (var i = 0; i < this._filters.length; ++i) {
             if (!this._filters[i](request))
                 return false;