Brave request throttling blocks action button update

[lidel]

Finally, found out what is the cause of random browser action freezes! 🥶

It seems there is a limit of concurrent requests made by an extension, and it includes URLs for assets shipped with extension itself, such as icons.

This creates environment for unfortunate edge case: when we load a page with a lot of new assets that trigger delegated dht calls, internal request for "loading" browser action icon is marked as "pending":

Potential solutions:

• (assuming its specific to browser action update) change the logic responsible for updating browser action, ensure icon update is async OR remove peer count and update the icon only when changing state between online ←→ offline.
• revisit delegated routing modules, ensure every http call has an explicit timeout, make it configurable

[lidel]

#967 (comment)