Add error handling for browser storage operations and runtime messages in content scripts

└── apps
    └── browser
        └── src
            ├── background
            │   ├── clear-chat-init-data.ts
            │   ├── config.ts
            │   ├── keep-alive.ts
            │   ├── main.ts
            │   ├── message-handler.ts
            │   └── websocket.ts
            ├── content-scripts
            │   └── send-prompt-content-script
            │       ├── constants
            │       │   ├── apply-response-icon.ts
            │       │   └── dictionary.ts
            │       ├── send-prompt-content-script.ts
            │       ├── types
            │       │   └── chatbot.ts
            │       └── utils
            │           ├── add-apply-response-button.ts
            │           ├── apply-response-styles.ts
            │           ├── logger.ts
            │           ├── report-initialization-error.ts
            │           └── show-response-ready-notification.ts
            ├── manifest.json
            └── utils
                └── is-message.ts

Author: robertpiosik

apps/browser/src/content-scripts/send-prompt-content-script/send-prompt-content-script.ts

@@ -162,9 +162,11 @@ const initialize_chat = async (params: { message: string; chat: Chat }) => {
     document.addEventListener('keydown', handle_key_press)
     setTimeout(resolve, 2000)
   })
-  browser.runtime.sendMessage<Message>({
-    action: 'chat-initialized'
-  })
+  browser.runtime
+    .sendMessage<Message>({
+      action: 'chat-initialized'
+    })
+    .catch((e) => console.debug('Failed to send chat-initialized message', e))
 }
 
 const main = async () => {
@@ -182,7 +184,13 @@ const main = async () => {
     )
 
     const storage_key = `chat-init:${batch_id}`
-    const storage = await browser.storage.local.get(storage_key)
+    let storage: any
+    try {
+      storage = await browser.storage.local.get(storage_key)
+    } catch (e) {
+      console.debug('Failed to get chat init data', e)
+      return
+    }
     const stored_data = storage[storage_key] as {
       text: string
       current_chat: Chat
@@ -212,7 +220,11 @@ const main = async () => {
       chat: current_chat
     })
 
-    await browser.storage.local.remove(storage_key)
+    try {
+      await browser.storage.local.remove(storage_key)
+    } catch (e) {
+      console.debug('Failed to remove chat init data', e)
+    }
 
     if (chatbot?.setup_observer) {
       const inject_button = stored_data.inject_apply_response_button ?? false

apps/browser/src/content-scripts/send-prompt-content-script/utils/add-apply-response-button.ts

@@ -52,11 +52,13 @@ export function add_apply_response_button(params: {
         console.error('Error reading CWC session data', error)
       }
 
-      browser.runtime.sendMessage<Message>({
-        action: 'apply-response',
-        client_id,
-        raw_instructions
-      })
+      browser.runtime
+        .sendMessage<Message>({
+          action: 'apply-response',
+          client_id,
+          raw_instructions
+        })
+        .catch((e) => console.debug('Failed to send apply-response message', e))
     })
   })
 
@@ -89,9 +91,13 @@ export function observe_for_responses(params: {
     }
 
     if (!has_sent_finished_responding) {
-      browser.runtime.sendMessage<Message>({
-        action: 'finished-responding'
-      })
+      browser.runtime
+        .sendMessage<Message>({
+          action: 'finished-responding'
+        })
+        .catch((e) =>
+          console.debug('Failed to send finished-responding message', e)
+        )
       has_sent_finished_responding = true
       show_response_ready_notification({ chatbot_name: params.chatbot_name })
     }

apps/browser/src/manifest.json

@@ -4,7 +4,7 @@
   "name": "Autofill for Code Web Chat",
   "short_name": "CWC",
   "description": "Got tired with copy and paste? Enable prompt autofill!",
-  "version": "2026.916.10",
+  "version": "2026.916.11",
   "homepage_url": "https://github.com/robertpiosik/CodeWebChat",
   "icons": {
     "16": "icons/icon-16.png",