Sends beacon request in beforeunload event in Firefox

Firefox has a bug/feature that it don't send the beacon in pagehide event. Closes #19305
vaadin · Oct 9, 2024 · e4af719 · e4af719
1 parent 1fbf412
commit e4af719
Showing 1 changed file with 10 additions and 3 deletions.
diff --git a/flow-client/src/main/java/com/vaadin/client/ApplicationConnection.java b/flow-client/src/main/java/com/vaadin/client/ApplicationConnection.java
@@ -116,9 +116,16 @@ public void start(ValueMap initialUidl) {
  registry.getMessageHandler().handleMessage(initialUidl);
  }
 
- Browser.getWindow().addEventListener("pagehide", e -> {
- registry.getMessageSender().sendUnloadBeacon();
- });
+ if (BrowserInfo.get().isFirefox()) {
+ // Sends in beforeunload in FF (don't support beacon in pagehide)
+ Browser.getWindow().addEventListener("beforeunload", e -> {
+ registry.getMessageSender().sendUnloadBeacon();
+ });
+ } else {
+ Browser.getWindow().addEventListener("pagehide", e -> {
+ registry.getMessageSender().sendUnloadBeacon();
+ });
+ }
 
  Browser.getWindow().addEventListener("pageshow", e -> {
  // Currently only Safari gets here, sometimes when going back/foward