/api/challenge/{username} position parameter

[Beddie]

The position parameter does not work.
Reproduce http request:

POST /api/challenge/{username} HTTP/1.1
Host: lichess.org
Authorization: Bearer
Content-Type: application/x-www-form-urlencoded

rated=false&variant=standard&position=rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq e3 1 1&color=white&clock.limit=300&clock.increment=2

The position value will be encoded when request is made. Also tested with already encoded position value.

[ornicar]

try variant=fromPosition

[Beddie]

Hi ornicar,

Thank you. Using this variant = fromPosition i do get an 400 Bad Request error, see json below:
{
"global": [
"Invalid FEN"
],
"error": {
"global": [
"Invalid FEN"
]
}
}

The FEN i use as value for key:position is valid. Do i need other key's as well? Do you have a working FEN? Thanks