1163534 - AboutReader.jsm:248:0 throws an error in the console when closing an about:reader tab

Status: RESOLVED WORKSFORME

(Toolkit :: Reader Mode, defect)

Description

[Cornel Ionce [:noni] [Hubs QA]]

Reproducible on:
Firefox 38.0.5b1-build1 (20150510205200)

Affected platforms:
Windows 7 (x64), Windows 8.1 (x86), Mac OS X 10.9.5, Ubuntu 14.04 (x64)

Steps to reproduce:
1. Launch Firefox.
2. Have at least two tabs opened and in one of them open a Reader View-compatible page, e.g. http://bits.blogs.nytimes.com/2015/03/30/the-path-toward-tomorrows-internet/?_r=0
3. Enter Reader View.
4. Open the browser console and close the about:reader tab

Expected result:
* The example pages is successfully closed
* There are no error messages thrown for this action.

Actual result:
* The following error message is thrown by ReaderParent.jsm:95:12 in the Browser Console when the page is closed:
> NS_ERROR_ILLEGAL_VALUE: Component returned failure code: 0x80070057 (NS_ERROR_ILLEGAL_VALUE) [nsIMessageListenerManager.removeMessageListener]


Additional notes:
* Latest Nightly (build ID: 20150510030207) is NOT affected;
* Latest Aurora (build ID: 20150510004003)is NOT affected;
* This issue might be a regression, I'll try to work on a regression range as soon as possible.

Comment 1

[:Gijs (out for now; he/him)]

39+ was already unaffected, and can't reproduce on 48 beta --> WFM.