2 files changed, 52 insertions, 0 deletions
diff --git a/node_modules/symbol-observable/lib/index.js b/node_modules/symbol-observable/lib/index.js
new file mode 100644
index 000000000..de74e7845
--- /dev/null
+++ b/node_modules/symbol-observable/lib/index.js
@@ -0,0 +1,29 @@
+'use strict';
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+
+var _ponyfill = require('./ponyfill.js');
+
+var _ponyfill2 = _interopRequireDefault(_ponyfill);
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }
+
+var root; /* global window */
+
+
+if (typeof self !== 'undefined') {
+  root = self;
+} else if (typeof window !== 'undefined') {
+  root = window;
+} else if (typeof global !== 'undefined') {
+  root = global;
+} else if (typeof module !== 'undefined') {
+  root = module;
+} else {
+  root = Function('return this')();
+}
+
+var result = (0, _ponyfill2['default'])(root);
+exports['default'] = result;
+\ No newline at end of file
diff --git a/node_modules/symbol-observable/lib/ponyfill.js b/node_modules/symbol-observable/lib/ponyfill.js
new file mode 100644
index 000000000..be68acaad
--- /dev/null
+++ b/node_modules/symbol-observable/lib/ponyfill.js
@@ -0,0 +1,23 @@
+'use strict';
+
+Object.defineProperty(exports, "__esModule", {
+	value: true
+});
+exports['default'] = symbolObservablePonyfill;
+function symbolObservablePonyfill(root) {
+	var result;
+	var _Symbol = root.Symbol;
+
+	if (typeof _Symbol === 'function') {
+		if (_Symbol.observable) {
+			result = _Symbol.observable;
+		} else {
+			result = _Symbol('observable');
+			_Symbol.observable = result;
+		}
+	} else {
+		result = '@@observable';
+	}
+
+	return result;
+};
+\ No newline at end of file