1118465 - {[e10s] ABP's objectTabs.js also throws an exception on line 364.

Status: RESOLVED WORKSFORME

(Firefox :: Extension Compatibility, defect)

Description

[Allison Naaktgeboren :ally]

Also note that object tabs regularly on line 302 (bug 1118462)

Comment 1

[Wladimir Palant]

For reference, line 364 is:

>      let wndWidth = doc.documentElement.clientWidth;

doc is a content document here, and judging from the similar bugs the exception is triggered by accessing doc.documentElement. Interestingly, before getting here Adblock Plus will necessarily access other elements (calling getBoundClientRect() on them and accessing element.ownerDocument), and that access apparently doesn't trigger an exception. However, the code walks the frame hierarchy so maybe the issue affects only elements of a particular frame. I'm pretty sure that this is a duplicate of bug 1118457 so please keep the general discussion there.

Comment 2

[Wladimir Palant]

objectTabs.js no longer relies on CPOWs as of Adblock Plus 2.7, is this issue still present?