Bugzilla

At least for the last couple of months, I think I have seen the test, comm/calendar/test/browser/eventDialog/browser_attendeesDialog.js, to time out possibly due to the issue filed here.

So this timeout issue may not be tied to a particular test, but any test that happens to be hit with this "System addon update list error".

The attached log produced locally using FULL DEBUG version of C-C TB under linux shows that the test,  comm/calendar/test/browser/eventDialog/browser_attendeesDialog.js, times out.

However, please notice that  the error is preceded by another error,
```
INFO Console message: [JavaScript Error: "Invalid ETag value "undefined"" {file: "resource://services-settings/SyncHistory.jsm" line: 52}]
```

This is something I observed in someone else's tryserver log in Bug 1805119, but I am not sure
if this "Innvalid ETag value" is related to this bug or just another symptom caused by a common underlying cause.

In any case, the timeout of the test comm/calendar/test/browser/eventDialog/browser_attendeesDialog.js is likely the result of two errors one in this bugzilla and the other  bug 1805199 during its execution.

I said this in the original post.:
```
I believe this happens with the following test
14:44.63 TEST_START: comm/calendar/test/browser/providers/browser_caldavCalendar_cached.js
```
But, at least for the last couple of months, I think I have seen the test, comm/calendar/test/browser/eventDialog/browser_attendeesDialog.js, to time out possibly due to the issue filed here.

So this timeout issue may not be tied to a particular test, but any test that happens to be hit with this "System addon update list error".

The attached log produced locally using FULL DEBUG version of C-C TB under linux shows that the test,  comm/calendar/test/browser/eventDialog/browser_attendeesDialog.js, times out.

However, please notice that  the error is preceded by another error,
```
INFO Console message: [JavaScript Error: "Invalid ETag value "undefined"" {file: "resource://services-settings/SyncHistory.jsm" line: 52}]
```

This is something I observed in someone else's tryserver log in Bug 1805119, but I am not sure
if this "Innvalid ETag value" is related to this bug or just another symptom caused by a common underlying cause.

In any case, the timeout of the test comm/calendar/test/browser/eventDialog/browser_attendeesDialog.js is likely the result of two errors one in this bugzilla and the other  bug 1805199 during its execution.