fix(ui): check for addEventListener on MediaQueryList
#12448
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In Safari < 14, `MediaQueryList` does not inherit from `EventTarget`, which triggers an uncaught error, causing a blank page.
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Summary
Fixes #9392.
Problem
In Safari < 14,
MediaQueryListdoes not inherit fromEventTarget, which triggers an uncaught error, causing a blank page.Solution
Check if our
MediaQueryListhasaddEventListener, and avoid calling it otherwise.Screenshots
How did you test this change?
Ran
yarn devand tested on BrowserStack Live with iOS 13 on iPhone 11 via BrowserStack Local.