Updating java script
Site patching or upgrade notification may not take place if such proxies are required, but you may be able to check for updates manually.
These include: logs any amends it makes to Opera Dragonfly’s console.
The log begins “Opera has modified...” and ends with the string “browser.js”.
If this doesn’t work for you, the file may be corrupted.
Please follow the instructions on “checking for updates manually” in the next section.
If you think Opera is modifying your page incorrectly or unnecessarily, or if you have removed the cause of the problems, please report it in our bug tracking system or send us a pull request on Git Hub.