Update bypasstimeout.user.js

Flightradar24.com/BypassTimeout/bypasstimeout.user.js

@@ -3,18 +3,32 @@
 // @namespace   HKR
 // @match       https://www.flightradar24.com/*
 // @grant       none
-// @version     1.0
+// @version     1.2
 // @author      HKR
-// @description Bypasses the 15-min timeout
-// @run-at      document-load
+// @description Bypasses the 30-min timeout
+// @run-at      document-start
 // ==/UserScript==
-
-(() => {
-    setInterval(() => {
-        try {
-            dispatcher.features['map.timeout.mins'] = 999999999999;
-        } catch {
-            // nothing
-        }
-    }, 1000);
-})();
+
+function modifyConfigString(configStr, key, value) {
+    let regex = new RegExp(`("${key}":\\s*)[^,]+`, 'g');
+    let newConfigStr = configStr.replace(regex, `$1${value}`);
+
+    return newConfigStr;
+}
+
+function patchNode(node) {
+    const changeArr = [
+        ['map.timeout.mins', 0]
+        // room for more changes...
+    ];
+
+    changeArr.forEach(x => node.innerText = modifyConfigString(node.innerText, x[0], x[1]));
+}
+
+new MutationObserver(mutationsList => {
+    mutationsList.forEach(mutationRecord => {
+        [...mutationRecord.addedNodes]
+          .filter(node => node.tagName === 'SCRIPT')
+          .forEach(node => patchNode(node));
+    });
+}).observe(document, { childList: true, subtree: true });