1167609 - [E10S] Requiring sdk/UI causes target.QueryInterface errors when loading a page

Status: RESOLVED WORKSFORME

(Add-on SDK Graveyard :: General, defect, P1)

Description

[Jack W]

User Agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:40.0) Gecko/20100101 Firefox/40.0
Build ID: 20150521004003

Steps to reproduce:

Enable E10S
Make an SDK addon which has require("sdk/ui"). You don't actually have to use the UI module, just require it.
Open the browser console and navigate to any web page.


Actual results:

The following is logged to the browser console (reproduced in Nightly and Developer Edition):
TypeError: target.QueryInterface is not a function
Stack trace:
getFrameElement@resource://gre/modules/commonjs/toolkit/loader.js -> resource://gre/modules/commonjs/sdk/window/utils.js:443:4
getFrame@resource://gre/modules/commonjs/toolkit/loader.js -> resource://gre/modules/commonjs/sdk/input/frame.js:32:39
lift/</<@resource://gre/modules/commonjs/toolkit/loader.js -> resource://gre/modules/commonjs/sdk/event/utils.js:163:28
emitOnObject@resource://gre/modules/commonjs/toolkit/loader.js -> resource://gre/modules/commonjs/sdk/event/core.js:112:9
emit@resource://gre/modules/commonjs/toolkit/loader.js -> resource://gre/modules/commonjs/sdk/event/core.js:89:38
receive@resource://gre/modules/commonjs/toolkit/loader.js -> resource://gre/modules/commonjs/sdk/event/utils.js:115:5
InputPort.prototype.observe@resource://gre/modules/commonjs/toolkit/loader.js -> resource://gre/modules/commonjs/sdk/input/system.js:100:5
ObserverParent.notify@resource://gre/modules/RemoteAddonsParent.jsm:354:9
ObserverParent.receiveMessage@resource://gre/modules/RemoteAddonsParent.jsm:344:9

In addition, when the browser is first run (rather than when loading a page), "JavaScript error: resource://gre/modules/AddonManager.jsm, line 20: Error: You cannot use the AddonManager in child processes!" is logged to the console, and I think it's the same issue.
The issue is only present with E10S enabled.


Expected results:

No error should be logged.

Comment 1

[Markus Hartung]

I was able to reproduce it with Nightly 44.0a1 (2015-10-12) and Aurora 43.0a2 (2015-10-08). 

Steps:
- jpm init
- Added "var ui = require('sdk/ui');" to index.js
- jpm run -b "C:\Program Files (x86)\Firefox Developer Edition\firefox.exe"

Comment 2

[Luca Greco [:rpl] [:luca] [:lgreco]]

I can't reproduce this on Nightly nor in the following combination of "SO / Firefox version":

- Linux: 44.0a2, 43.0, 43.0a2 43.0b2 43.0b9
- Windows 8: 44.0a2, 43.0 

Feel free to reopen if you are still able to reproduce it on Nightly or on recent Firefox 43 or Firefox 44 builds.