Board search returns no results

Searches of the format board: are not returning any results as of June 9 2021. I’ve tested using both the UI and API search and both return an empty result set for boards which have cards.

Example API request:

GET https://api.trello.com/1/search?query=board:&key=&token=

Response:

{
    "options": {
        "terms": [],
        "modifiers": [
            {
                "text": "board:<boardId>"
            }
        ],
        "modelTypes": [
            "cards"
        ],
        "partial": false
    },
    "cards": []
}

Searching in the UI with the query “board:” or “board:”"" also returns an empty result: “We couldn’t find any cards or boards that matched your search.”

I have permissions to retrieve cards on the given board. I am able to retrieve cards directly using the cards API:

GET https://api.trello.com/1/card/?&key=&token=

Interesting. Can you screenshot that? When you check out the Network tab in your browser console, do you see the request firing off to trello.com/1/ and a response coming back?