fixed login on legacy link user/openid_login

Signed-off-by: Stephan Richter <s.richter@srsoftware.de>

frontend/src/Components/Login.svelte

@@ -37,8 +37,9 @@
 
 
     async function redirectTo(e,service){
-        const btn = e.target;
-        btn.disabled = true;
+        console.log(redirectTo,{e:e,service:service})
+        const btn = e?.target;
+        if (btn) btn.disabled = true;
         const url  = api(`user/oidc/redirect/${service}?returnTo=${window.location.pathname}`);
         const resp = await fetch(url,{credentials:'include'});
         if (resp.ok){
@@ -50,7 +51,7 @@
             }
         } else {
             error = resp.text();
-            btn.disabled = false;
+            if (btn) btn.disabled = false;
         }
     }
 
@@ -60,7 +61,7 @@
     }
 
     if (router.fullPath.endsWith('/openid_login') && router.query.service) {
-        redirectTo(router.query.service);
+        redirectTo(null,router.query.service);
     } else {
         onMount(load);
     }