update

node_modules/extract-css-chunks-webpack-plugin/dist/index.js

@@ -282,7 +282,8 @@ class ExtractCssChunksPlugin {
           const {
             insert
           } = this.options;
-          return Template.asString([source, '', `// ${pluginName} CSS loading`, `var cssChunks = ${JSON.stringify(chunkMap)};`, 'if(installedCssChunks[chunkId]) promises.push(installedCssChunks[chunkId]);', 'else if(installedCssChunks[chunkId] !== 0 && cssChunks[chunkId]) {', Template.indent(['promises.push(installedCssChunks[chunkId] = new Promise(function(resolve, reject) {', Template.indent([`var href = ${linkHrefPath};`, `var fullhref = ${mainTemplate.requireFn}.p + href;`, 'var existingLinkTags = document.getElementsByTagName("link");', 'for(var i = 0; i < existingLinkTags.length; i++) {', Template.indent(['var tag = existingLinkTags[i];', 'var dataHref = tag.getAttribute("data-href") || tag.getAttribute("href");', 'if(tag.rel === "stylesheet" && (dataHref === href || dataHref === fullhref)) return resolve();']), '}', 'var existingStyleTags = document.getElementsByTagName("style");', 'for(var i = 0; i < existingStyleTags.length; i++) {', Template.indent(['var tag = existingStyleTags[i];', 'var dataHref = tag.getAttribute("data-href");', 'if(dataHref === href || dataHref === fullhref) return resolve();']), '}', 'var linkTag = document.createElement("link");', 'linkTag.rel = "stylesheet";', 'linkTag.type = "text/css";', 'linkTag.onload = resolve;', 'linkTag.onerror = function(event) {', Template.indent(['var request = event && event.target && event.target.src || fullhref;', 'var err = new Error("Loading CSS chunk " + chunkId + " failed.\\n(" + request + ")");', 'err.code = "CSS_CHUNK_LOAD_FAILED";', 'err.request = request;', 'delete installedCssChunks[chunkId]', 'linkTag.parentNode.removeChild(linkTag)', 'reject(err);']), '};', 'linkTag.href = fullhref;', crossOriginLoading ? Template.asString([`if (linkTag.href.indexOf(window.location.origin + '/') !== 0) {`, Template.indent(`linkTag.crossOrigin = ${JSON.stringify(crossOriginLoading)};`), '}']) : '', insert ? 'insert(linkTag);' : 'var head = document.getElementsByTagName("head")[0]; head.appendChild(linkTag)']), '}).then(function() {', Template.indent(['installedCssChunks[chunkId] = 0;']), '}));']), '}']);
+          const supportsPreload = '(function() { try { return document.createElement("link").relList.supports("preload"); } catch(e) { return false; }}());';
+          return Template.asString([source, '', `// ${pluginName} CSS loading`, `var supportsPreload = ${supportsPreload}`, `var cssChunks = ${JSON.stringify(chunkMap)};`, 'if(installedCssChunks[chunkId]) promises.push(installedCssChunks[chunkId]);', 'else if(installedCssChunks[chunkId] !== 0 && cssChunks[chunkId]) {', Template.indent(['promises.push(installedCssChunks[chunkId] = new Promise(function(resolve, reject) {', Template.indent([`var href = ${linkHrefPath};`, `var fullhref = ${mainTemplate.requireFn}.p + href;`, 'var existingLinkTags = document.getElementsByTagName("link");', 'for(var i = 0; i < existingLinkTags.length; i++) {', Template.indent(['var tag = existingLinkTags[i];', 'var dataHref = tag.getAttribute("data-href") || tag.getAttribute("href");', 'if((tag.rel === "stylesheet" || tag.rel === "preload") && (dataHref === href || dataHref === fullhref)) return resolve();']), '}', 'var existingStyleTags = document.getElementsByTagName("style");', 'for(var i = 0; i < existingStyleTags.length; i++) {', Template.indent(['var tag = existingStyleTags[i];', 'var dataHref = tag.getAttribute("data-href");', 'if(dataHref === href || dataHref === fullhref) return resolve();']), '}', 'var linkTag = document.createElement("link");', 'linkTag.rel = supportsPreload ? "preload": "stylesheet";', 'supportsPreload ? linkTag.as = "style" : linkTag.type = "text/css";', 'linkTag.onload = resolve;', 'linkTag.onerror = function(event) {', Template.indent(['var request = event && event.target && event.target.src || fullhref;', 'var err = new Error("Loading CSS chunk " + chunkId + " failed.\\n(" + request + ")");', 'err.code = "CSS_CHUNK_LOAD_FAILED";', 'err.request = request;', 'delete installedCssChunks[chunkId]', 'linkTag.parentNode.removeChild(linkTag)', 'reject(err);']), '};', 'linkTag.href = fullhref;', crossOriginLoading ? Template.asString([`if (linkTag.href.indexOf(window.location.origin + '/') !== 0) {`, Template.indent(`linkTag.crossOrigin = ${JSON.stringify(crossOriginLoading)};`), '}']) : '', insert ? `var insert = ${insert};\ninsert(linkTag);` : 'var head = document.getElementsByTagName("head")[0]; head.appendChild(linkTag)']), '}).then(function() {', Template.indent(['installedCssChunks[chunkId] = 0;', 'if(supportsPreload) {', Template.indent(['var execLinkTag = document.createElement("link");', `execLinkTag.href =  ${mainTemplate.requireFn}.p + ${linkHrefPath};`, 'execLinkTag.rel = "stylesheet";', 'execLinkTag.type = "text/css";', 'document.body.appendChild(execLinkTag);']), '}']), '}));']), '}']);
         }
 
         return source;
@@ -381,6 +382,7 @@ class ExtractCssChunksPlugin {
           // no module found => there is a conflict
           // use list with fewest failed deps
           // and emit a warning
+          if (!bestMatch) break;
           const fallbackModule = bestMatch.pop();
 
           if (!this.options.ignoreOrder) {

node_modules/extract-css-chunks-webpack-plugin/dist/loader.js

@@ -43,7 +43,7 @@ function hotLoader(content, context) {
   return `${content}
     if(module.hot) {
       // ${Date.now()}
-      var cssReload = require(${_loaderUtils.default.stringifyRequest(context.context, _path.default.join(__dirname, 'hmr/hotModuleReplacement.js'))})(module.id, ${JSON.stringify(_objectSpread({}, context.options, {
+      var cssReload = require(${_loaderUtils.default.stringifyRequest(context.context, _path.default.join(__dirname, 'hmr/hotModuleReplacement.js'))})(module.id, ${JSON.stringify(_objectSpread(_objectSpread({}, context.options), {}, {
     locals: !!context.locals
   }))});
       module.hot.dispose(cssReload);