GData urls ignores alt parameter and callback parameter

[retrofoxxo]

All urls on the gdata url apart from /feeds/api/videos?q= ignore the alt and callback parameter, the mentioned url however does support the alt and callback parameter and returns data in properly in this format

callbacks._16m5vbkjdz({json data here});

alt parameter in this case is "json" and the callback parameter is callbacks._16m5vbkjdz