RESOLVED MOVED197486
Responsive Design Mode doesn't simulate screen size 
https://bugs.webkit.org/show_bug.cgi?id=197486
Summary Responsive Design Mode doesn't simulate screen size
Xidorn Quan
Reported 2019-05-01 18:37:29 PDT
Some apps choose to use screen size (as opposed to viewport size) as a factor for their responsive design. Safari doesn't seem to simulate screen size (obtained via `window.screen`) when in Responsive Design Mode, which makes it hard to debug those web apps. Steps to reproduce: 1. open a website 2. click Develop / Enter Responsive Design Mode 3. click Develop / Show JavaScript Console 4. enter "screen" and enter Expected result: It should have a screen object with width and height for the device. Actual result: The screen object has the width and height of the current desktop screen.
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Radar WebKit Bug Importer
Comment 1 2022-07-20 22:53:07 PDT
<rdar://problem/97361332>
Patrick Angle
Comment 2 2022-09-22 13:22:56 PDT
<rdar://44222660>
Brent Fulgham
Comment 3 2023-04-11 17:14:46 PDT
The cause of this issue is in code outside of WebKit, so resolving as MOVED.
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