Created attachment 399796 [details] testcase Likely related bug 314457 as that assertion can be triggered with a small amount of editing to the testcase.
Attachment #399798 - Attachment mime type: application/octet-stream → text/plain
The stack trace says something about cross-origin wrappers. Blake?
###!!! ASSERTION: Eh? What's happening?: '!entry->key', file js/src/xpconnect/src/xpcmaps.cpp, line 750
WFM. (Paul, please verify.)
Status: NEW → RESOLVED
Last Resolved: 7 years ago
Resolution: --- → WORKSFORME
You need to log in before you can comment on or make changes to this bug.