Push messaging fixes:

* Remove push subscriptions on logout, to trigger a resubscription when logging back in.
* Don't try to call `this.push` when there's no `this` to have a `push` on.

1 files changed, 6 insertions, 1 deletions

diff --git a/ui/lib/session.svelte.js b/ui/lib/session.svelte.js
index cd41aa4..74508ea 100644
--- a/ui/lib/session.svelte.js
+++ b/ui/lib/session.svelte.js
@@ -145,7 +145,12 @@ async function bootOrNavigate(navigateTo) {
   } catch (err) {
     switch (true) {
       case err instanceof api.LoggedOut:
-        await this.push.unsubscribe();
+        // Can't use `Push` state manager here as it requires boot, which we just failed to do.
+        const sw = await navigator.serviceWorker.ready;
+        const subscription = await sw.pushManager.getSubscription();
+        if (subscription !== null) {
+          await subscription.unsubscribe();
+        }
         await navigateTo('/login');
         break;
       case err instanceof api.SetupRequired: