1318621 - Navigate menu is cut on landscape mode for some viewport configurations

Status: RESOLVED INVALID

(DevTools :: Responsive Design Mode, defect)

Description

[Petruta Horea [:phorea]]

Attachment: cut menu.png

[Affected versions]:
- 52.0a2 2016-11-17
- 53.0a1 2016-11-17

[Affected platforms]:
- Win 10 64-bit
- Mac OS X 10.11.5

[Steps to reproduce]:
1. Open http://mzl.la/1Dls1DC
2. Enable RDM tool.
3. Scroll down the viewport
4. Click the 'Change orientation' button.
4. Scroll down the viewport

[Expected result]:
- The navigate menu is correctly shown - OR - it is hidden, like in device mode

[Actual result]:
- The navigate menu is cut on landscape mode
- This doesn't happen when selecting a device from the list since in this case the menu is hidden

[Regression range]:
- This reproduces on 47.0a1 Nightly 2016-02-22, so it's not a regression

[Additional notes]:
- Viewport configurations where this reproduces: 480 x 320, 403 x 342, etc.

Comment 1

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

It sounds like this is expected behavior to me.  When you choose a device, you're also sending a device specific user agent.  It seems like this site switches to mobile layout based on the user agent, so it's not really a great example of a "responsive" site (one that ideally varies on width alone).