Validator says to "check the details below" for invalid JSON, but there are no details

[Xiretza]

For e.g. the following JSON, which is missing the issue_report_channels key:

{
  "api":"0.13",
  "api_compatibility":["14"],
  "space":"IT-Syndikat",
  "logo":"https://it-syndikat.org/api/images/its_l.png",
  "url":"https://it-syndikat.org",
  "location":{
    "address":"Tschamlerstrasse 3, 6020 Innsbruck, Austria",
    "lat":47.2578,
    "lon":11.3961
  },
  "state":{
    "open":false,
    "lastchange":1660506330,
    "icon":{
      "open":"https://it-syndikat.org/api/images/ITS_Open.png",
      "closed":"https://it-syndikat.org/api/images/ITS_Closed.png"
    }
  },
  "contact":{
    "phone":"+43 512 563468",
    "mastodon":"@itsyndikat@chaos.social",
    "twitter":"@ItSyndikat",
    "email":"wir@it-syndikat.org",
    "matrix":"#lobby:it-syndik.at"
  },
  "membership_plans":[
    {
      "name": "Normal membership",
      "value": 20,
      "currency": "EUR",
      "billing_interval": "monthly"
    },
    {
      "name": "Student membership",
      "value": 10,
      "currency": "EUR",
      "billing_interval": "monthly"
    }
  ],
  "ext_ccc": "chaostreff"
}

https://validator.spaceapi.io/ui/ reports:

Checked JSON is invalid!
The checked JSON is not valid against the SpaceAPI schema, check the details below.

But there are no details that mention issue_report_channels in any way.

[dbrgn]

Hmm, seems I wasn't subscribed to notifications on this repo.

Bug confirmed. The API returns the correct value, so it's the web UI that doesn't properly handle it.

I suspect the current UI would highlight the problematic key, but because the key is missing completely, there is nothing to highlight.

(If someone wants to take a closer look and open a PR, that would be welcome.)