1280581 - Devtools sometimes won't open on specific page

Status: RESOLVED DUPLICATE of bug 983386

(DevTools :: Inspector, defect)

Description

[Maël Lavault]

User Agent: Mozilla/5.0 (X11; Fedora; Linux x86_64; rv:47.0) Gecko/20100101 Firefox/47.0
Build ID: 20160606100246

Steps to reproduce:

Tried to open devtools after webpage reload (was doing local dev).

It opens if I go to another tab but won't open except if i close the tab and reopen my page in another tab.


Actual results:

Nothing. Here is the browser console stack:

 promise chain failed to handle a rejection. Did you forget to '.catch', or did you forget to 'return'?
See https://developer.mozilla.org/Mozilla/JavaScript_code_modules/Promise.jsm/Promise

Date: Fri Jun 17 2016 11:50:57 GMT+0200 (CEST)
Full Message: TypeError: this._toolbox is null
Full Stack: InspectorPanel.prototype.selection@resource://gre/modules/commonjs/toolkit/loader.js -> resource://devtools/client/inspector/inspector-panel.js:130:5
nsContextMenu.prototype.inspectNode/<@chrome://browser/content/nsContextMenu.js:576:11
Handler.prototype.process@resource://gre/modules/Promise.jsm -> resource://gre/modules/Promise-backend.js:937:23
this.PromiseWalker.walkerLoop@resource://gre/modules/Promise.jsm -> resource://gre/modules/Promise-backend.js:816:7
this.PromiseWalker.scheduleWalkerLoop/<@resource://gre/modules/Promise.jsm -> resource://gre/modules/Promise-backend.js:750:11
 inspector-panel.js:130:0
A promise chain failed to handle a rejection. Did you forget to '.catch', or did you forget to 'return'?
See https://developer.mozilla.org/Mozilla/JavaScript_code_modules/Promise.jsm/Promise

Date: Fri Jun 17 2016 11:51:03 GMT+0200 (CEST)
Full Message: TypeError: this._toolbox is null
Full Stack: InspectorPanel.prototype.selection@resource://gre/modules/commonjs/toolkit/loader.js -> resource://devtools/client/inspector/inspector-panel.js:130:5
nsContextMenu.prototype.inspectNode/<@chrome://browser/content/nsContextMenu.js:576:11
Handler.prototype.process@resource://gre/modules/Promise.jsm -> resource://gre/modules/Promise-backend.js:937:23
this.PromiseWalker.walkerLoop@resource://gre/modules/Promise.jsm -> resource://gre/modules/Promise-backend.js:816:7
this.PromiseWalker.scheduleWalkerLoop/<@resource://gre/modules/Promise.jsm -> resource://gre/modules/Promise-backend.js:750:11
 inspector-panel.js:130:0
A promise chain failed to handle a rejection. Did you forget to '.catch', or did you forget to 'return'?
See https://developer.mozilla.org/Mozilla/JavaScript_code_modules/Promise.jsm/Promise

Date: Fri Jun 17 2016 11:51:14 GMT+0200 (CEST)
Full Message: TypeError: this._toolbox is null
Full Stack: InspectorPanel.prototype.selection@resource://gre/modules/commonjs/toolkit/loader.js -> resource://devtools/client/inspector/inspector-panel.js:130:5
nsContextMenu.prototype.inspectNode/<@chrome://browser/content/nsContextMenu.js:576:11
Handler.prototype.process@resource://gre/modules/Promise.jsm -> resource://gre/modules/Promise-backend.js:937:23
this.PromiseWalker.walkerLoop@resource://gre/modules/Promise.jsm -> resource://gre/modules/Promise-backend.js:816:7
this.PromiseWalker.scheduleWalkerLoop/<@resource://gre/modules/Promise.jsm -> resource://gre/modules/Promise-backend.js:750:11
 inspector-panel.js:130:0
A promise chain failed to handle a rejection. Did you forget to '.catch', or did you forget to 'return'?
See https://developer.mozilla.org/Mozilla/JavaScript_code_modules/Promise.jsm/Promise

Date: Fri Jun 17 2016 11:50:41 GMT+0200 (CEST)
Full Message: TypeError: this._toolbox is null
Full Stack: InspectorPanel.prototype.selection@resource://gre/modules/commonjs/toolkit/loader.js -> resource://devtools/client/inspector/inspector-panel.js:130:5
nsContextMenu.prototype.inspectNode/<@chrome://browser/content/nsContextMenu.js:576:11
Handler.prototype.process@resource://gre/modules/Promise.jsm -> resource://gre/modules/Promise-backend.js:937:23
this.PromiseWalker.walkerLoop@resource://gre/modules/Promise.jsm -> resource://gre/modules/Promise-backend.js:816:7
this.PromiseWalker.scheduleWalkerLoop/<@resource://gre/modules/Promise.jsm -> resource://gre/modules/Promise-backend.js:750:11
 inspector-panel.js:130:0
refresh: Checking updates for: WorkPoller batch.js:417:165
ajax  : executing request for workAllData batch.js:417:165


Expected results:

Devtools should open.

Comment 1

[Vlad Bacia-Mociran [:VladB]]

I'm moving the issue to Firefox - Developer Tools component. Activity Streams is an add-on and has nothing to do with your issue.

Comment 2

[Maël Lavault]

(In reply to Vlad Bacia [:VladB] from comment #1)
> I'm moving the issue to Firefox - Developer Tools component. Activity
> Streams is an add-on and has nothing to do with your issue.

Yes sorry I forgot to select the right component. Thanks !

Comment 3

[J. Ryan Stinnett [:jryans] (Use needinfo, replies may be slow)]

Thanks for the report!

Can you provide more details about the context?  Do you see this on every site or only specific pages?  (I wasn't entirely sure from your description.)

Comment 4

[Maël Lavault]

Yes, I see it a lot on the new website we are developing for our company. It's an isomorphic react app. I see it there a lot because I do a lot of refresh on the page. I don't know if it happens on other pages.

Comment 5

[Patrick Brosset <:pbro>]

Could this be a duplicate of bug 983386? It looks that way to me.
Mael: can you confirm that this happens when you reload the page after Firefox had displayed an error page?

Comment 6

[Patrick Brosset <:pbro>]

No answers from Mael after a few weeks. Going to close this as dupe of bug 983386 and leave the needinfo.
We can always change this later.

Comment 7

[Maël Lavault]

Yes I confirm, it is a dupe, I missed the needinfo request, sorry !