Setting goto with whitespace?

[NiKiZe]

goto only takes one argument, since you have a space it becomes 2.

Maybe you can use goto ${product:uristring} instead. (and then use %20 in the label line)
And as an last restort you can use ${product:hexraw} instead.

But reading the sources, Only space should be an separator in the label so uristring hack should work.

https://git.ipxe.org/ipxe.git/blob/24112...ipt.c#l322