Unchecked runtime.lastError: Cannot access a chrome:// URL

Question

I am new to chrome extension development. Sometimes I get the following errors:

• Unchecked runtime.lastError: Cannot access a chrome:// URL
• Unchecked runtime.lastError: Could not establish connection. Receiving end does not exist.
• Uncaught (in promise) TypeError: Cannot destructure property 'contentFullSize' of '(intermediate value)' as it is undefined.

Answer 1

For the first error I replied to the same question here: Chrome Extension cause "Uncaught (in promise) Error: Cannot access a chrome:// URL"

Essentially, skip the tab if the URL is "chrome://":

if (tab.url?.startsWith("chrome://")) return undefined;

Note. To have access to tab.url you need "tabs" in manifest (V3) "permissions".