The form also shouldn't close if the info event wasn't found. And if it was found, the wallet indicator should turn green.
But maybe the error is CSP + browser combination again which throws an error at a location which isn't toasted.
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That check only verifies everything up to but not including the secret since a correct secret is not required to receive the info event unfortunately. ↩
Oh, sorry, I mean Content Security Policy. This is supposed to tell your browser what code is good to run and which should get blocked. It might be blocking too much depending on the browser.
Footnotes