Cannot get xslt to output an (&) even after escaping the character

Question

I am trying to create a query string of variable assignments separated by the & symbol (ex: \"var1=x&var2=y&...\"). I plan to pass this

Answer 1

If you are creating a query string as part of a larger URL in an attribute of some other tag (like "embed"), then you actually want the & to be escaped as &. While all browsers will figure out what you mean and Do The Right Thing, if you were to pass your generated doc to a validator it would flag the un-escaped & in the attribute value.