<p></p>
<p>I’m also using OpenID (with my own website delegating to Launchpad) and cannot login any more either.</p>
<p><a target="_blank" rel="noopener noreferrer" href="https://user-images.githubusercontent.com/861078/113358753-aa5ac000-9346-11eb-8c23-88cb688e5513.png"><img src="https://user-images.githubusercontent.com/861078/113358753-aa5ac000-9346-11eb-8c23-88cb688e5513.png" alt="Screenshot_20210402_000008" style="max-width:100%;"></a></p>
<p>Perhaps these failures (CSP blocked script loading) are involved?</p>
<p><a target="_blank" rel="noopener noreferrer" href="https://user-images.githubusercontent.com/861078/113358796-bf375380-9346-11eb-8955-53ee674fcfc4.png"><img src="https://user-images.githubusercontent.com/861078/113358796-bf375380-9346-11eb-8955-53ee674fcfc4.png" alt="Screenshot_20210402_000035" style="max-width:100%;"></a></p>
<p>Trying to trace this a bit:</p>
<pre><code>POST | https://www.openstreetmap.org/auth/openid/callback?_method=post
</code></pre>
<p>The request contains:</p>
<p><code>openid.response_nonce=2021-04-01T22%3A03%3A31ZLoDctO&openid.ns.sreg=http%3A%2F%2Fopenid.net%2Fextensions%2Fsreg%2F1.1&openid.signed=assoc_handle%2Cax.count.ext0%2Cax.count.ext1%2Cax.count.ext2%2Cax.count.ext3%2Cax.count.ext4%2Cax.count.ext5%2Cax.count.ext6%2Cax.count.ext7%2Cax.count.ext8%2Cax.mode%2Cax.type.ext0%2Cax.type.ext1%2Cax.type.ext2%2Cax.type.ext3%2Cax.type.ext4%2Cax.type.ext5%2Cax.type.ext6%2Cax.type.ext7%2Cax.type.ext8%2Cax.value.ext0.1%2Cax.value.ext1.1%2Cax.value.ext4.1%2Cclaimed_id%2Cidentity%2Cmode%2Cns%2Cns.ax%2Cns.sreg%2Cop_endpoint%2Cresponse_nonce%2Creturn_to%2Csigned%2Csreg.email%2Csreg.fullname%2Csreg.nickname&openid.sreg.email=</code> my mail <code>&openid.op_endpoint=https%3A%2F%2Flogin.launchpad.net%2F%2Bopenid&openid.ax.type.ext8=http%3A%2F%2Faxschema.org%2Fmedia%2Fimage%2Faspect11&openid.ax.type.ext4=http%3A%2F%2Faxschema.org%2FnamePerson%2Ffriendly&openid.ax.type.ext5=http%3A%2F%2Faxschema.org%2Fcontact%2Fcity%2Fhome&openid.ax.type.ext6=http%3A%2F%2Faxschema.org%2Fcontact%2Fstate%2Fhome&openid.ax.type.ext7=http%3A%2F%2Faxschema.org%2Fcontact%2Fweb%2Fdefault&openid.ax.type.ext0=http%3A%2F%2Faxschema.org%2Fcontact%2Femail&openid.ax.type.ext1=http%3A%2F%2Faxschema.org%2FnamePerson&openid.ax.type.ext2=http%3A%2F%2Faxschema.org%2FnamePerson%2Ffirst&openid.ax.type.ext3=http%3A%2F%2Faxschema.org%2FnamePerson%2Flast&openid.sig=</code> some base64 <code>&openid.ax.value.ext1.1=</code> my name <code>&openid.ax.value.ext4.1=</code> my username <code>&openid.return_to=https%3A%2F%2Fwww.openstreetmap.org%2Fauth%2Fopenid%2Fcallback%3F_method%3Dpost&openid.ax.mode=fetch_response&openid.claimed_id=</code> my delegating site <code>&openid.sreg.nickname=</code> my username <code>&openid.ns.ax=http%3A%2F%2Fopenid.net%2Fsrv%2Fax%2F1.0&openid.ax.value.ext0.1=</code> my email <code>&openid.mode=id_res&openid.identity=https%3A%2F%2Flogin.launchpad.net%2F%2Bid%2F</code> my ID <code>&openid.ax.count.ext0=1&openid.ax.count.ext1=1&openid.ax.count.ext2=0&openid.ax.count.ext3=0&openid.ax.count.ext4=1&openid.ax.count.ext5=0&openid.ax.count.ext6=0&openid.ns=http%3A%2F%2Fspecs.openid.net%2Fauth%2F2.0&openid.ax.count.ext8=0&openid.ax.count.ext7=0&openid.sreg.fullname=</code> my name <code>&openid.assoc_handle=%7BHMAC-SHA1%7D%7B</code> a number <code>%7D%7B</code> some base64 `%7D&openid.usernamesecret=</p>
<p>Interestingly, <code>openid.usernamesecret</code> is empty. Unsure if this is correct, but it’s what Launchpad provides.</p>
<p>The response is thus (302 Found):</p>
<pre><code>Location | /auth/failure?message=no+implicit+conversion+of+nil+into+String&strategy=openid
</code></pre>

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