do delay the test for http, too, to make it more reliable

do delay the test for http, too, to make it more reliable

The file method was already slowed down and somehow I thought I had done
the same for http, but it turns out that I didn't. Giving it the same
delay as file should help in making this test slower and therefore more
likely to successfully test what it is supposed to test.

Git-Dch: Ignore