ServiceWorker Inspector: Uncaught Exception: null is not an object (evaluating 'resource.target.addResource')

• Component: Web Inspector
• Status: RESOLVED FIXED

[Joseph Pecoraro]

* Steps to Reproduce
1. Inspect ServiceWorker on airhorner.com
2. Reload the airhorner.com page
  => Exception in inspector for script with `targetId` of "serviceWorkerScriptLoad:" which is unexpected

-------
Inspected URL:        https://airhorner.com/
Loading completed:    true
Dispatch Source:      Protocol Event

Protocol Event:
{"method":"Network.requestWillBeSent","params":{"requestId":"0.28","frameId":"","loaderId":"","documentURL":"https://airhorner.com/sw.js","request":{"url":"https://airhorner.com/sw.js","method":"GET","headers":{"Service-Worker":"script"}},"timestamp":3.59948630600411,"walltime":1541551630.689134,"initiator":{"type":"other"},"targetId":"serviceWorkerScriptLoad:"}}

Uncaught Exceptions:
 - null is not an object (evaluating 'resource.target.addResource') (at NetworkManager.js:619:28)
    _addNewResourceToFrameOrTarget @ NetworkManager.js:619:28
    resourceRequestWillBeSent @ NetworkManager.js:274:55
    requestWillBeSent @ NetworkObserver.js:41:52
    dispatchEvent @ InspectorBackend.js:305:42
    _dispatchEvent @ Connection.js:194:32
    dispatch @ Connection.js:72:32
    dispatch @ InspectorBackend.js:154:49
    dispatchNextQueuedMessageFromBackend @ MessageDispatcher.js:42:34

Additional Details:
    cause --> An uncaught exception was thrown while handling event: Network.requestWillBeSent

[Joseph Pecoraro]

Created attachment 354030 [details]
[PATCH] Proposed Fix

[Matt Baker]

Comment on attachment 354030 [details]
[PATCH] Proposed Fix

r=me

[WebKit Commit Bot]

Comment on attachment 354030 [details]
[PATCH] Proposed Fix

Clearing flags on attachment: 354030

Committed r237917: <https://trac.webkit.org/changeset/237917>

[WebKit Commit Bot]

All reviewed patches have been landed.  Closing bug.

[Radar WebKit Bug Importer]

<rdar://problem/45867252>