diff --git a/desktop/static/index.dev.html b/desktop/static/index.dev.html
index 49c4a6d43..a7624e2d7 100644
--- a/desktop/static/index.dev.html
+++ b/desktop/static/index.dev.html
@@ -68,6 +68,13 @@
         suppressErrors = true;
       });
 
+      socket.on('plugins-source-updated', (pluginsChanged) => {
+        window.postMessage({
+          type: 'plugins-source-updated',
+          data: pluginsChanged
+        })
+      })
+
       function openError(text) {
         if (suppressErrors) {
           return;
@@ -105,4 +112,4 @@
   </script>
 </body>
 
-</html>
\ No newline at end of file
+</html>
diff --git a/desktop/static/index.web.dev.html b/desktop/static/index.web.dev.html
index 63f3f4878..45db413aa 100644
--- a/desktop/static/index.web.dev.html
+++ b/desktop/static/index.web.dev.html
@@ -65,13 +65,26 @@
       let suppressErrors = false;
 
       const socket = new WebSocket(`ws://${location.host}`);
+      window.devSocket = socket;
 
       socket.addEventListener('message', ({ data: dataRaw }) => {
         const message = JSON.parse(dataRaw.toString())
 
-        if (message.event === 'hasErrors') {
-          openError(message.payload);
-          suppressErrors = true;
+        if (typeof message.event === 'string') {
+          switch (message.event) {
+            case 'hasErrors': {
+              openError(message.payload);
+              suppressErrors = true;
+              break;
+            }
+            case 'plugins-source-updated': {
+              window.postMessage({
+                type: 'plugins-source-updated',
+                data: message.payload
+              })
+              break;
+            }
+          }
         }
       })
 
@@ -128,4 +141,4 @@
   </script>
 </body>
 
-</html>
\ No newline at end of file
+</html>