NEW 205396
Rotating the device increases the page zoom with each rotation, once a pinch zoom has been performed 
https://bugs.webkit.org/show_bug.cgi?id=205396
Summary Rotating the device increases the page zoom with each rotation, once a pinch ...
webkitwyv
Reported 2019-12-18 08:22:29 PST
Steps to reproduce: - Create an html file with e.g. just the word "Test" in it. - Open that file using Safari on a device running at least iOS 13. The bug cannot be reproduced on a lower iOS version or on Chrome for iOS. - Pinch zoom the page in and back out to its original zoom level. - Change the device orientation a couple of times. With each rotation, the zoom will increase a little bit, making the word "Test" appear larger and larger. Additional info: - The bug can be "disabled" by reloading the page with a changed URL, e.g. by appending a '#' to the URL or removing it again. - The bug will then not occur again until another pinch zoom is performed.
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webkitwyv
Comment 1 2019-12-18 08:27:38 PST
Another way to reproduce it is (after the pinch zoom) by closing the browser and reopening it. With each closing and opening, the zoom will increase by quite a bit.
Radar WebKit Bug Importer
Comment 2 2019-12-18 12:40:29 PST
<rdar://problem/58053723>
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