Closed Bug 1484764 Opened Last year Closed Last year

TypeError: this.netmonitors is null

Categories

(DevTools :: Console, defect)

defect
Not set

Tracking

(firefox63 fixed)

RESOLVED FIXED
Firefox 63
Tracking Status
firefox63 --- fixed

People

(Reporter: osmose, Assigned: ochameau)

References

()

Details

(Whiteboard: [nightly-js-sentry:4564090])

Attachments

(1 file)

This bug was automatically filed from Sentry: https://sentry.prod.mozaws.net/operations/nightly-js-errors/issues/4564090/

TypeError: this.netmonitors is null

---

Getting between 1500 to 3500 of these a day. It first showed up August 17th in build 20180816220128. I suspect it's still rising as the update circulates out.

The error is coming from resource://devtools/server/actors/webconsole.js (no line info *sigh*).  The only suspicious use of netmonitors to my eyes is here, where it's referenced without a null check in an event handler: https://searchfox.org/mozilla-central/source/devtools/server/actors/webconsole.js#1821

Every other use seems to have a null check.
cc ochameau since this was probably introduced by Bug 1479524.
See Also: → 1479524
Assignee: nobody → poirot.alex
Comment on attachment 9002699 [details]
Bug 1484764 - Prevent netmonitors is undefined exception when closing tools during page load. r=Honza

Jan Honza Odvarko [:Honza] has approved the revision.
Attachment #9002699 - Flags: review+
Pushed by apoirot@mozilla.com:
https://hg.mozilla.org/integration/autoland/rev/6bfff0d1a5a4
Prevent netmonitors is undefined exception when closing tools during page load. r=Honza
https://hg.mozilla.org/mozilla-central/rev/6bfff0d1a5a4
Status: NEW → RESOLVED
Closed: Last year
Resolution: --- → FIXED
Target Milestone: --- → Firefox 63
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