My test for "non-native" Vim is always 'q:' which should open a command line window of previous commands at the bottom of your screen - unfortunately that does

My test for "non-native" Vim is always 'q:' which should open a command line window of previous commands at the bottom of your screen - unfortunately that does not work. Furthermore I can't use 'Ctrl-v' that let's you select a column of text (EDIT: correction, this does work). 'q:' should not be captured by the browser? Nevertheless impressive work.