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microtask, don't use MutationObserver on WebOS Webkit #901

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merged 1 commit into from Jan 2, 2021
Merged

microtask, don't use MutationObserver on WebOS Webkit #901

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3 changes: 3 additions & 0 deletions packages/core-js/internals/engine-is-webos-webkit.js
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@@ -0,0 +1,3 @@
var userAgent = require('../internals/engine-user-agent');

module.exports = /web0s(?!.*chrome)/i.test(userAgent);
4 changes: 3 additions & 1 deletion packages/core-js/internals/microtask.js
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Expand Up @@ -2,6 +2,7 @@ var global = require('../internals/global');
var getOwnPropertyDescriptor = require('../internals/object-get-own-property-descriptor').f;
var macrotask = require('../internals/task').set;
var IS_IOS = require('../internals/engine-is-ios');
var IS_WEBOS_WEBKIT = require('../internals/engine-is-webos-webkit');
var IS_NODE = require('../internals/engine-is-node');

var MutationObserver = global.MutationObserver || global.WebKitMutationObserver;
Expand Down Expand Up @@ -34,7 +35,8 @@ if (!queueMicrotask) {
};

// browsers with MutationObserver, except iOS - https://github.com/zloirock/core-js/issues/339
if (!IS_IOS && !IS_NODE && MutationObserver && document) {
// also except WebOS Webkit https://github.com/zloirock/core-js/issues/898
if (!IS_IOS && !IS_NODE && !IS_WEBOS_WEBKIT && MutationObserver && document) {
toggle = true;
node = document.createTextNode('');
new MutationObserver(flush).observe(node, { characterData: true });
Expand Down