35 lines
905 B
JavaScript
35 lines
905 B
JavaScript
/* global WorkerGlobalScope */
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function add(fn) {
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if (typeof WorkerGlobalScope === 'function' && self instanceof WorkerGlobalScope) {// this is run inside of a webworker
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} else {
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/**
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* if we are on react-native, there is no window.addEventListener
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* @link https://github.com/pubkey/unload/issues/6
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*/
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if (typeof window.addEventListener !== 'function') return;
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/**
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* for normal browser-windows, we use the beforeunload-event
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*/
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window.addEventListener('beforeunload', function () {
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fn();
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}, true);
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/**
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* for iframes, we have to use the unload-event
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* @link https://stackoverflow.com/q/47533670/3443137
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*/
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window.addEventListener('unload', function () {
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fn();
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}, true);
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}
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/**
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* TODO add fallback for safari-mobile
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* @link https://stackoverflow.com/a/26193516/3443137
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*/
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}
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export default {
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add: add
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}; |