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Cross-Origin Request Blocked

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I received an unexpected error trying to login at firefox sync. Seeing at console I found: "Cross-Origin Request Blocked: The Same Origin Policy disallows reading the remote resource at https://api.accounts.firefox.com/v1/account/login?keys=true. (Reason: CORS preflight channel did not succeed)."

How can I solve that?

Thanks

I received an unexpected error trying to login at firefox sync. Seeing at console I found: "Cross-Origin Request Blocked: The Same Origin Policy disallows reading the remote resource at https://api.accounts.firefox.com/v1/account/login?keys=true. (Reason: CORS preflight channel did not succeed)." How can I solve that? Thanks

Wšykne wótegrona (2)

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When I try that link by clicking it, I get a 503 server error, so maybe that's the real problem that needs to be addressed before Sync users can log in.

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Here's the status page for Mozilla services, indicating they are looking into login problems (as of a few hours ago): https://status.services.mozilla.com/