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Responsive design mode pane stops responding to scroll wheel after a resize

  • 5 Mbohovái
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  • Mbohovái ipaháva cor-el

ollie1
ollie1
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Steps to reproduce:

- Load a webpage in Firefox - Enter keyboard shortcut Command-Option-M - Drag the side or corner of the Responsive Design Mode Pane to resize it - Hold cursor over the window and attempt to scroll with mouse scroll

Expected behaviour:

- Responsive Design Mode Pane scrolls normally

Observed behaviour:

- Responsive Design Mode Pane does not respond to scrolling attempt

Further observations:

- Moving focus elsewhere (e.g. by clicking in another window) restores normal scroll responsiveness - Resizing the pane breaks it again

Steps to reproduce: - Load a webpage in Firefox - Enter keyboard shortcut Command-Option-M - Drag the side or corner of the Responsive Design Mode Pane to resize it - Hold cursor over the window and attempt to scroll with mouse scroll Expected behaviour: - Responsive Design Mode Pane scrolls normally Observed behaviour: - Responsive Design Mode Pane does not respond to scrolling attempt Further observations: - Moving focus elsewhere (e.g. by clicking in another window) restores normal scroll responsiveness - Resizing the pane breaks it again

Opaite Mbohovái (5)

cor-el
cor-el
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Note that Firefox 71 is currently in release candidate state (RC build 4) and is about to be released in a few days.

Do you also have this issue with the regular release ?

Does it make a difference if you enable/disable touch simulation support ?

Moambuepyre cor-el rupive

ollie1
ollie1 Porandu apoha
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Thanks cor-el for jumping on this promptly!

>Note that Firefox 71 is currently in release candidate state (RC build 4) and is about to be released in a few days.

Is there a more appropriate place to provide RC feedback?

>Do you also have this issue with the regular release ?

Yes. To test I installed Firefox 70.0.1 – it ran with a new profile (no add-ons). It displayed the same issue.

>Does it make a difference if you enable/disable touch simulation support ?

Enabling/disabling touch simulation didn’t appear to affect the scrolling/not-scrolling behaviour.

cor-el
cor-el
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I did some testing as well and am able to replicate. It doesn't seem to happen all the time and sometimes scrolling starts working again after another resize (usually I need to make the viewport smaller).

I found a bug report about this issue.

  • Bug 1490571 - Not able to scroll after resizing RWD view
ollie1
ollie1 Porandu apoha
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Ah thanks! Good to know it is being investigated and I’m not alone.

cor-el
cor-el
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What seems to work to restore wheel scrolling is hovering an element that has a tooltip like a toolbar button or Tab until the tooltip is shown. This also works for me with hovering the RDM rotate viewport button and the touch simulation button.