Merge 944edcc into 8e70e4a

Author: zwu52

packages/messaging/CHANGELOG.md

@@ -0,0 +1,4 @@
+# Unreleased
+
+- [fixed] Fixed an issue introduced in 7.7.0, when FCM switched to provide base64-encoded VAPID
+  key to [PushManager](https://developer.mozilla.org/en-US/docs/Web/API/PushManager) for push subscription. For backward compatibility, the SDK has switched back to using VAPID key in type [ArrayBuffer](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/ArrayBuffer).