Merge pull request #60014 from nextcloud/backport/60011/stable29

[stable29] fix: Harmonize login and passwordless login redirect behavior

Author: artonge

core/src/components/login/PasswordLessLoginForm.vue

@@ -37,6 +37,7 @@
 </template>
 
 <script>
+import { getBaseUrl } from '@nextcloud/router'
 import {
 	startAuthentication,
 	finishAuthentication,
@@ -203,13 +204,19 @@ export default {
 		completeAuthentication(challenge) {
 			console.debug('TIME TO COMPLETE')
 
-			const redirectUrl = this.redirectUrl
+			let redirectUrl = this.redirectUrl
 
 			return finishAuthentication(JSON.stringify(challenge))
 				.then(({ defaultRedirectUrl }) => {
-					console.debug('Logged in redirecting')
-					// Redirect url might be false so || should be used instead of ??.
-					window.location.href = redirectUrl || defaultRedirectUrl
+					logger.debug('Logged in redirecting')
+					if (redirectUrl) {
+						if (redirectUrl.charAt(0) !== '/') {
+							redirectUrl = '/' + redirectUrl
+						}
+						window.location.href = getBaseUrl() + redirectUrl
+					} else {
+						window.location.href = defaultRedirectUrl
+					}
 				})
 				.catch(error => {
 					console.debug('GOT AN ERROR WHILE SUBMITTING CHALLENGE!')