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Workaround for mozilla bug doesn't work since Firefox 62 #757

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mikhail-polontech opened this issue Nov 23, 2020 · 0 comments
Open

Workaround for mozilla bug doesn't work since Firefox 62 #757

mikhail-polontech opened this issue Nov 23, 2020 · 0 comments

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@mikhail-polontech
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mikhail-polontech commented Nov 23, 2020 •
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Related pull request: #106

Since Firefox version 62, window.getComputedStyle() returns a CSSStyleDeclaration object with length 0 (instead of null) inside an iframe with display: none.
See this comment: https://bugzilla.mozilla.org/show_bug.cgi?id=548397#c53.

CSSStyleDeclaration object with length 0 is not a falsy value, so the previous fix does not work and vendorPrefix gets an empty string value.
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