mirror of https://github.com/webpack/webpack.git
66 lines
2.0 KiB
JavaScript
66 lines
2.0 KiB
JavaScript
/*
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MIT License http://www.opensource.org/licenses/mit-license.php
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Author Tobias Koppers @sokra
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*/
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/*globals hotAddUpdateChunk parentHotUpdateCallback document XMLHttpRequest $require$ $hotChunkFilename$ $hotMainFilename$ $crossOriginLoading$ */
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module.exports = function() {
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// eslint-disable-next-line no-unused-vars
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function webpackHotUpdateCallback(chunkId, moreModules) {
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hotAddUpdateChunk(chunkId, moreModules);
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if (parentHotUpdateCallback) parentHotUpdateCallback(chunkId, moreModules);
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} //$semicolon
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// eslint-disable-next-line no-unused-vars
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function hotDownloadUpdateChunk(chunkId) {
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var head = document.getElementsByTagName("head")[0];
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var script = document.createElement("script");
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script.charset = "utf-8";
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script.src = $require$.p + $hotChunkFilename$;
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$crossOriginLoading$;
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head.appendChild(script);
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}
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// eslint-disable-next-line no-unused-vars
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function hotDownloadManifest(requestTimeout) {
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requestTimeout = requestTimeout || 10000;
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return new Promise(function(resolve, reject) {
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if (typeof XMLHttpRequest === "undefined") {
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return reject(new Error("No browser support"));
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}
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try {
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var request = new XMLHttpRequest();
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var requestPath = $require$.p + $hotMainFilename$;
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request.open("GET", requestPath, true);
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request.timeout = requestTimeout;
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request.send(null);
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} catch (err) {
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return reject(err);
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}
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request.onreadystatechange = function() {
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if (request.readyState !== 4) return;
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if (request.status === 0) {
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// timeout
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reject(
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new Error("Manifest request to " + requestPath + " timed out.")
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);
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} else if (request.status === 404) {
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// no update available
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resolve();
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} else if (request.status !== 200 && request.status !== 304) {
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// other failure
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reject(new Error("Manifest request to " + requestPath + " failed."));
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} else {
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// success
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try {
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var update = JSON.parse(request.responseText);
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} catch (e) {
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reject(e);
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return;
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}
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resolve(update);
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}
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};
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});
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}
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};
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