Issue #2827014 by michielnugter, Lendude, marcoscano, dawehner, cilefen,...

Issue #2827014 by michielnugter, Lendude, marcoscano, dawehner, cilefen, larowlan, xjm, droplet, alexpott, Wim Leers: Throw an exception when testing status code or response headers in functional JavaScript tests

(cherry picked from commit 6496b03d)