use the browser specific script header at one more place
Issue 1245


git-svn-id: svn://svn.code.sf.net/p/htmlunit/code/trunk@8813 5f5364db-9458-4db8-a492-e30667be6df6
use the same accept headers as browsers do
Issue 1245


git-svn-id: svn://svn.code.sf.net/p/htmlunit/code/trunk@8814 5f5364db-9458-4db8-a492-e30667be6df6