From 55f52ddb6857133fd6e766f4113e7127850c2957 Mon Sep 17 00:00:00 2001
From: =?utf8?q?Rapha=C3=ABl=20Jakse?= <raphael.trivabble@jakse.fr>
Date: Thu, 8 May 2025 11:09:37 +0200
Subject: [PATCH] Better fallback handling when connecting

---
 public/trivabble.js | 35 +++++++++++++++++++++--------------
 1 file changed, 21 insertions(+), 14 deletions(-)

diff --git a/public/trivabble.js b/public/trivabble.js
index 04e023a..b1c5722 100644
--- a/public/trivabble.js
+++ b/public/trivabble.js
@@ -1431,10 +1431,14 @@
         if (canConnect() && getSetting("ENABLE_EVENT_SOURCE") && window.EventSource) {
             closeConnections();
             pollingServer = true;
-
-            eventSource = new EventSource(getSetting("API_ENTRY_POINT") + "/sse/" + JSON.stringify(cmdsWithContext()));
-            bindConnectionEvents(eventSource);
-            return;
+            try {
+                eventSource = new EventSource(getSetting("API_ENTRY_POINT") + "/sse/" + JSON.stringify(cmdsWithContext()));
+                bindConnectionEvents(eventSource);
+                return;
+            } catch (e) {
+                pollingServer = false;
+                // failed, will fallback to XHR
+            }
         }
 
         pollServerWithXHR();
@@ -1444,16 +1448,19 @@
         if (canConnect() && getSetting("ENABLE_WEBSOCKETS") && !blacklistWebsockets && window.WebSocket) {
             closeConnections();
             pollingServer = true;
-
-            webSocket = new WebSocket(
-                (window.location.protocol === "http:" ? "ws://" : "wss://") +
-                window.location.host +
-                getSetting("API_ENTRY_POINT") + "/ws/" +
-                JSON.stringify(cmdsWithContext())
-            );
-
-            bindConnectionEvents(webSocket);
-            return;
+            try {
+                webSocket = new WebSocket(
+                    (window.location.protocol === "http:" ? "ws://" : "wss://") +
+                    window.location.host +
+                    getSetting("API_ENTRY_POINT") + "/ws/" +
+                    JSON.stringify(cmdsWithContext())
+                );
+                bindConnectionEvents(webSocket);
+                return;
+            } catch (e) {
+                // failed, will fall back to event source
+                pollingServer = false;
+            }
         }
 
         pollServerWithEventSource();
-- 
2.30.2