修改bug

node_modules/style-loader/dist/runtime/styleDomAPI.js

@@ -0,0 +1,61 @@
+"use strict";
+
+/* istanbul ignore next  */
+function apply(styleElement, options, obj) {
+  var css = "";
+  if (obj.supports) {
+    css += "@supports (".concat(obj.supports, ") {");
+  }
+  if (obj.media) {
+    css += "@media ".concat(obj.media, " {");
+  }
+  var needLayer = typeof obj.layer !== "undefined";
+  if (needLayer) {
+    css += "@layer".concat(obj.layer.length > 0 ? " ".concat(obj.layer) : "", " {");
+  }
+  css += obj.css;
+  if (needLayer) {
+    css += "}";
+  }
+  if (obj.media) {
+    css += "}";
+  }
+  if (obj.supports) {
+    css += "}";
+  }
+  var sourceMap = obj.sourceMap;
+  if (sourceMap && typeof btoa !== "undefined") {
+    css += "\n/*# sourceMappingURL=data:application/json;base64,".concat(btoa(unescape(encodeURIComponent(JSON.stringify(sourceMap)))), " */");
+  }
+
+  // For old IE
+  /* istanbul ignore if  */
+  options.styleTagTransform(css, styleElement, options.options);
+}
+function removeStyleElement(styleElement) {
+  // istanbul ignore if
+  if (styleElement.parentNode === null) {
+    return false;
+  }
+  styleElement.parentNode.removeChild(styleElement);
+}
+
+/* istanbul ignore next  */
+function domAPI(options) {
+  if (typeof document === "undefined") {
+    return {
+      update: function update() {},
+      remove: function remove() {}
+    };
+  }
+  var styleElement = options.insertStyleElement(options);
+  return {
+    update: function update(obj) {
+      apply(styleElement, options, obj);
+    },
+    remove: function remove() {
+      removeStyleElement(styleElement);
+    }
+  };
+}
+module.exports = domAPI;