Convert link to button

Signed-off-by: RMidhunSuresh <rmidhunsuresh@gmail.com>

src/domain/login/LoginViewModel.js

@@ -49,11 +49,15 @@ export class LoginViewModel extends ViewModel {
     get homeserver() { return this._homeserver; }
     get errorMessage() { return this._errorMessage; }
     get showHomeserver() { return !this._hideHomeserver; }
-    get cancelUrl() { return this.urlCreator.urlForSegment("session"); }
     get loadViewModel() {return this._loadViewModel; }
     get isBusy() { return this._isBusy; }
     get isFetchingLoginOptions() { return this._isFetchingLoginOptions; }
 
+    goBack() {
+        const path = this.navigation.pathFrom([this.navigation.segment("session")]);
+        this.navigation.applyPath(path);
+    }
+
     async _createViewModels(homeserver) {
         if (this._loginToken) {
             this._hideHomeserver = true;

src/platform/web/ui/login/LoginView.js

@@ -23,8 +23,14 @@ import {spinner} from "../common.js";
 
 export class LoginView extends TemplateView {
     render(t, vm) {
+        const disabled = vm => vm.isBusy;
+
         return t.div({className: "PreSessionScreen"}, [
-            t.a({className: "button-utility LoginView_back", href: vm.cancelUrl}),
+            t.button({
+                className: "button-utility LoginView_back",
+                onClick: () => vm.goBack(),
+                disabled
+            }),
             t.div({className: "logo"}),
             t.h1([vm.i18n`Sign In`]),
             t.mapView(vm => vm.completeSSOLoginViewModel, vm => vm ? new CompleteSSOView(vm) : null),
@@ -37,7 +43,7 @@ export class LoginView extends TemplateView {
                         type: "text",
                         placeholder: vm.i18n`Your matrix homeserver`,
                         value: vm.homeserver,
-                        disabled: vm => vm.isBusy,
+                        disabled,
                         onChange: event => vm.updateHomeServer(event.target.value),
                     })
                 ]