Security upgrades

node_modules/@material-ui/styles/esm/ServerStyleSheets/ServerStyleSheets.js

@@ -0,0 +1,54 @@
+import _extends from "@babel/runtime/helpers/esm/extends";
+import _classCallCheck from "@babel/runtime/helpers/esm/classCallCheck";
+import _createClass from "@babel/runtime/helpers/esm/createClass";
+import React from 'react';
+import { SheetsRegistry } from 'jss';
+import StylesProvider from '../StylesProvider';
+import createGenerateClassName from '../createGenerateClassName';
+
+var ServerStyleSheets = /*#__PURE__*/function () {
+  function ServerStyleSheets() {
+    var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
+
+    _classCallCheck(this, ServerStyleSheets);
+
+    this.options = options;
+  }
+
+  _createClass(ServerStyleSheets, [{
+    key: "collect",
+    value: function collect(children) {
+      // This is needed in order to deduplicate the injection of CSS in the page.
+      var sheetsManager = new Map(); // This is needed in order to inject the critical CSS.
+
+      this.sheetsRegistry = new SheetsRegistry(); // A new class name generator
+
+      var generateClassName = createGenerateClassName();
+      return /*#__PURE__*/React.createElement(StylesProvider, _extends({
+        sheetsManager: sheetsManager,
+        serverGenerateClassName: generateClassName,
+        sheetsRegistry: this.sheetsRegistry
+      }, this.options), children);
+    }
+  }, {
+    key: "toString",
+    value: function toString() {
+      return this.sheetsRegistry ? this.sheetsRegistry.toString() : '';
+    }
+  }, {
+    key: "getStyleElement",
+    value: function getStyleElement(props) {
+      return React.createElement('style', _extends({
+        id: 'jss-server-side',
+        key: 'jss-server-side',
+        dangerouslySetInnerHTML: {
+          __html: this.toString()
+        }
+      }, props));
+    }
+  }]);
+
+  return ServerStyleSheets;
+}();
+
+export { ServerStyleSheets as default };