UI Cannot Handle Invalid Server Name in Well-Known

[jamie6king]

When diagnosing my server, I came across a weird error. It works perfectly fine on the command line:

curl https://federationtester.matrix.org/api/report\?server_name\=0xportal.dev

{
  "Error": "Invalid server name 'https://matrix.0xportal.dev:443' in .well-known result",
  "WellKnownResult": {
    "m.server": "https://matrix.0xportal.dev:443",
    "CacheExpiresAt": 0
  },
  "DNSResult": {
    "SRVSkipped": false,
    "SRVCName": "",
    "SRVRecords": null,
    "SRVError": null,
    "Hosts": null,
    "Addrs": null
  },
  "ConnectionReports": {},
  "ConnectionErrors": {},
  "Version": {},
  "FederationOK": false
}

However, the UI goes blank with these errors in console: