1336435 - Responsive mode does not show JavaScript alert

Status: RESOLVED DUPLICATE of bug 1273997

(DevTools :: Responsive Design Mode, defect)

Description

[KohlyKohl]

User Agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:53.0) Gecko/20100101 Firefox/53.0
Build ID: 20170203004018

Steps to reproduce:

In responsive design mode, I expected an alert window to popup.


Actual results:

No error and no alert.


Expected results:

I expected a window to popup with an alert displaying my message. This same code works in Chrome device mode.

Comment 1

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

Yes, you're correct, this is currently not working in RDM.  So far, I've been hoping that `alert` is not critical for users of RDM and that `console.log` and similar are enough.  If that turns out to be wrong, we can increase priority of resolving this.

Comment 2

[Kevin Samuel]

alert() may not be important (although I wouldn't swear it), but confirm() and promp() are. They are great way to save time in MVP by avoiding the creating of manual confirmation and input modal screens. We usually only uses them in prototypes and early software versions, then later replace them with something better integrated. But right now we can't test them in Firefox responsive mode.

Besides, even if alert() is not important, everybody will assume there is a bug in the code base, not that it doesn't work in Firefox. I spent 30 minutes trying to figure out what I did wrong, and even tested againts 2 real mobile phones before understanding the problem was on Mozillas's side.

Comment 3

[[e-mail]]

(In reply to Kevin Samuel from comment #2)
> alert() may not be important (although I wouldn't swear it), but confirm()
> and promp() are. They are great way to save time in MVP by avoiding the
> creating of manual confirmation and input modal screens. We usually only
> uses them in prototypes and early software versions, then later replace them
> with something better integrated. But right now we can't test them in
> Firefox responsive mode.
> 
> Besides, even if alert() is not important, everybody will assume there is a
> bug in the code base, not that it doesn't work in Firefox. I spent 30
> minutes trying to figure out what I did wrong, and even tested againts 2
> real mobile phones before understanding the problem was on Mozillas's side.

"even if alert() is not important, everybody will assume there is a bug in the code base, not that it doesn't work in Firefox. I spent 30 minutes trying to figure out what I did wrong."

me too.

Comment 4

[marcosrocha85]

Neither window.confirm is showing. I also spent several minutes until figure out that the problem wasn't at my code.

Comment 5

[sdk]

Can confirm that this bug persists in v65.0 (64-bit) for Windows 10.

Comment 6

[Gabriel Luong [:gl] (ΦωΦ)]

(In reply to sdk from comment #5)

Can confirm that this bug persists in v65.0 (64-bit) for Windows 10

Hi sdk, This was fixed in Bug 1273997, which will appear in Firefox 66. Please consider giving Firefox Developer Edition (https://www.mozilla.org/en-US/firefox/developer/) or Firefox Nightly (https://www.mozilla.org/en-CA/firefox/channel/desktop/) a try and you won't have the issues there.

Comment 7

[sdk]

(In reply to Gabriel [:gl] (ΦωΦ) from comment #6)

Great, thank you, Gabriel!