I successfully updated to 4.3-1801~g7f952c2ed and tried to use your receipt, without success.
With wget I got the error: Bad port number.
Using this receipt directly on the browser it was understood as a Google search (???).
Removing (user:password) and /auth/channels I got bad request (error 400).
And with the standard /channels, the standard output.
Another thing I would like to mention is that my standard password has '#' character. Is that a problem?
Is there anything I need to change on the server side to enable persistent authentication?
Regards,
Cleiton