Ok, right now I have not really clue on what’s going on…
Everytime I open my twitch channel, I see the extension as I showed on the first post of this topic (Even with the local server not working).
I have done two additional tests, which makes this whole thing even weirder:
1.- If I change the “Testing Base URI” on the twitch console to another url… the extension shows nothing (as it should be). if I come back to the port 8080, it still shows the panel from the first post.
2.- If I click on the submit button of the extension (without starting the local server) it says " the localhost page has rejected the connection"
If I start the server and click on the submit button, the extension changes to my real panel.html:
