Add web front-end and fix API issues

node_modules/rxjs/dist/cjs/internal/operators/takeUntil.js

@@ -0,0 +1,15 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.takeUntil = void 0;
+var lift_1 = require("../util/lift");
+var OperatorSubscriber_1 = require("./OperatorSubscriber");
+var innerFrom_1 = require("../observable/innerFrom");
+var noop_1 = require("../util/noop");
+function takeUntil(notifier) {
+    return lift_1.operate(function (source, subscriber) {
+        innerFrom_1.innerFrom(notifier).subscribe(OperatorSubscriber_1.createOperatorSubscriber(subscriber, function () { return subscriber.complete(); }, noop_1.noop));
+        !subscriber.closed && source.subscribe(subscriber);
+    });
+}
+exports.takeUntil = takeUntil;
+//# sourceMappingURL=takeUntil.js.map