XMLHttpRequest open(..) methods failed when called with null for userid/password (patch Sebastian Cato)
Issue 1532


git-svn-id: svn://svn.code.sf.net/p/htmlunit/code/trunk@8434 5f5364db-9458-4db8-a492-e30667be6df6
simplified code

git-svn-id: svn://svn.code.sf.net/p/htmlunit/code/trunk@8435 5f5364db-9458-4db8-a492-e30667be6df6