976042 - Uncaught exception in DebuggerClient.prototype.onPacket/<@resource://gre/modules/devtools/dbg-client.jsm:655

Status: RESOLVED DUPLICATE of bug 975167

(DevTools :: Debugger, defect)

Description

[Frederik Braun [:freddy]]

Attachment: error-message.txt

TLDR: Trying to execute code from within the devtools after hitting a breakpoint renders the console non-functional for the current tab.

STR:
1. Set a breakpoint (worked on all pages I tested so far)
2. Do something that hits the breakpoint
3. Change to console and 'inspect' something via console autocomplete, e.g., enter |5.|, the dot should trigger the error
4. Console does not execute statements/show results of expressions.

Expected Result:
1,2. ..
3. Tooltip shows attributes instead of producing error message
4. Execution within the current breakpoint's state still works.


This happens to me in Aurora (build from Feb 23th, 2014). I have obtained the error message from the browser console and attached to this bug.

As a workaround, one could close the tab & right-click another tab to "undo close". This loses the state that you wanted to reach with the breakpoint of course.

Comment 1

[Frederik Braun [:freddy]]

FWIW, the bug was observed when debugging something on the local filesystem; the very last line of the attached error contains the file URI.

Comment 2

[Panos Astithas (he/him) [:past] (please ni?)]

We have a patch ready to land in bug 975167 that should fix this.

Comment 3

[Mihai Sucan [:msucan]]

Frederik, thanks for the bug report. We should probably ask for aurora approval for the patch in bug 975167.