How to use query_string_expected_args_only_table?

[ghost]

Hello,

my site has a URL style like this for the search function: http://localhost/search/?pa=myquery&might=myselectedcategory
Basically these are the only two parameters I have how can I make the script filter anything else except of these two parameters?

currently my config looks like this:

 local query_string_expected_args_only_table = {

	{
		".*", --any site
		{ --query strings to allow ONLY all others apart from those you list here will be removed from the URL
			"pa",
			"might",
		},
	},

which does not not seem to do the trick if I just want pa and might to work.