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fix: workaround for mozilla bug #106

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merged 1 commit into from
Dec 8, 2016
Merged

fix: workaround for mozilla bug #106

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6 changes: 5 additions & 1 deletion src/utils.js
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Original file line number Diff line number Diff line change
Expand Up @@ -18,7 +18,11 @@ export const events = {

export const vendorPrefix = (function () {
if (typeof window === 'undefined' || typeof document === 'undefined') return ''; // server environment
let styles = window.getComputedStyle(document.documentElement, '');
// fix for:
// https://bugzilla.mozilla.org/show_bug.cgi?id=548397
// window.getComputedStyle() returns null inside an iframe with display: none
// in this case return an array with a fake mozilla style in it.
let styles = window.getComputedStyle(document.documentElement, '') || ['-moz-hidden-iframe'];
const pre = (Array.prototype.slice
.call(styles)
.join('')
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