fix: various UI and server improvements

web/server/index.js

@@ -5825,7 +5825,9 @@ function setupProxy(app) {
 
     const requestHeaders = {
       ...(typeof req.headers.accept === 'string' ? { accept: req.headers.accept } : { accept: 'text/event-stream' }),
-      'cache-control': 'no-cache',
+      'cache-control': 'no-cache, no-store, must-revalidate',
+      'pragma': 'no-cache',
+      'expires': '0',
       connection: 'keep-alive',
       ...(authHeaders.Authorization ? { Authorization: authHeaders.Authorization } : {}),
     };
@@ -5859,7 +5861,7 @@ function setupProxy(app) {
       idleTimer = setTimeout(() => {
         endedBy = 'idle-timeout';
         controller.abort();
-      }, 5 * 60 * 1000);
+      }, 30 * 60 * 1000); // 30 minutes
     };
 
     const onClientClose = () => {
@@ -5901,7 +5903,9 @@ function setupProxy(app) {
       const upstreamContentType = upstreamResponse.headers.get('content-type') || 'text/event-stream';
       res.status(upstreamResponse.status);
       res.setHeader('content-type', upstreamContentType);
-      res.setHeader('cache-control', 'no-cache');
+      res.setHeader('cache-control', 'no-cache, no-store, must-revalidate');
+      res.setHeader('pragma', 'no-cache');
+      res.setHeader('expires', '0');
       res.setHeader('connection', 'keep-alive');
       res.setHeader('x-accel-buffering', 'no');
       res.setHeader('x-content-type-options', 'nosniff');