With great anxiety, I tried resetting Brave, but that didn’t fix it (and I lost half of the tabs I had open!).
But this seems to have worked:
- Visited one of the sites giving me problems (in this case, borderlands.com)
- Raised shields
- Toggled each option in the Shield
- Lowered the shields
- Refreshed the page and everything worked again
I was then able to log in to TradeDoubler.com again and didn’t have to repeat this process.
So I’m guessing something along the way corrupted the shields settings. @screenwriter, try what I did and let us know if it worked for you.