I recentely tried to log-in / sign-up for Area 51 SE using my SE account (which works on crypto, infosec and sign-up here) but it showed me an OpenID related error. (See below)
I could reproduce this error across multiple days and browser refreshes and using my other OpenID provider.
Error message (shown in red, obfuscated my e-mail address):
Unable to log in with your OpenID provider:
The openid.return_to parameter (http://area51.stackexchange.com/users/authenticate/?s=bd394805-cf55-4e8e-ad73-21485a09a989&dnoa.userSuppliedIdentifier=https%3A%2F%2Fopenid.stackexchange.com%2Fuser%2F642b1038-5c91-40d4-83ab-eb92db46c3d1) does not match the actual URL (https://area51.stackexchange.com/users/authenticate/?s=bd394805-cf55-4e8e-ad73-21485a09a989&dnoa.userSuppliedIdentifier=https%3A%2F%2Fopenid.stackexchange.com%2Fuser%2F642b1038-5c91-40d4-83ab-eb92db46c3d1&openid.claimed_id=https%3A%2F%2Fopenid.stackexchange.com%2Fuser%2F642b1038-5c91-40d4-83ab-eb92db46c3d1&openid.identity=https%3A%2F%2Fopenid.stackexchange.com%2Fuser%2F642b1038-5c91-40d4-83ab-eb92db46c3d1&openid.sig=4emyzuA31ChHU0LabPGJXldbN8GeKN%2FFBJXJy69yD10%3D&openid.signed=claimed_id%2Cidentity%2Cassoc_handle%2Cop_endpoint%2Creturn_to%2Cresponse_nonce%2Cns.alias3%2Calias3.mode%2Calias3.type.alias1%2Calias3.value.alias1%2Calias3.type.alias2%2Calias3.value.alias2&openid.assoc_handle=hrQL%21IAAAAGzBtFeNGBLU2o04XSWr7ISRAbO-B2tZCK3L61IzAsuQQQAAAAEdoTN6rf9fqaP1oekJGXGXJeB8fNSVuByptp5yx1VpQbAzQwF6HJzh6a0DwedydNJ-wwpJQoN5dOLEFmndZt-L&openid.op_endpoint=https%3A%2F%2Fopenid.stackexchange.com%2Fopenid%2Fprovider&openid.return_to=http%3A%2F%2Farea51.stackexchange.com%2Fusers%2Fauthenticate%2F%3Fs%3Dbd394805-cf55-4e8e-ad73-21485a09a989%26dnoa.userSuppliedIdentifier%3Dhttps%253A%252F%252Fopenid.stackexchange.com%252Fuser%252F642b1038-5c91-40d4-83ab-eb92db46c3d1&openid.response_nonce=2015-06-12T12%3A30%3A42Z7tADDeYZ&openid.mode=id_res&openid.ns=http%3A%2F%2Fspecs.openid.net%2Fauth%2F2.0&openid.ns.alias3=http%3A%2F%2Fopenid.net%2Fsrv%2Fax%2F1.0&openid.alias3.mode=fetch_response&openid.alias3.type.alias1=http%3A%2F%2Faxschema.org%2Fcontact%2Femail&openid.alias3.value.alias1=mycorrectaddress%40web.de&openid.alias3.type.alias2=http%3A%2F%2Faxschema.org%2FnamePerson&openid.alias3.value.alias2=SOJPM) the request was made with.
As noted in the comments I'm not the only one, so I'd guess it may be not something I can fix. So will this be fixed?
Repro steps (using SE OpenID):
- Get an Stackexchange OpenID account (like I have)
- (optional?) Add other OpenID providers and check they're working (StartSSL in my case)
- Please note: "You" don't have an "account" for the Area 51 subpage yet and still need to do the initial sign-in.
- Go to the Area 51 SE page
- Hit "Log-in" in the top-bar
- Hit the "log-in using stackexchange" button
- Enter your e-mail and password and submit
- Get the above error
Repro steps (using other OpenID)
- Perform as above (until step 4), but this time step 2 is mandatory
- Hit "more OpenID options"
- Provide your OpenID link XXX.provider.com (works on crypto, server fault, ...)
- Authenticate against your provider
- Receive a variation of the above error (can be included if needed)