This was unfortunately a bit more complex than just adding an HTML reset
button, since reset buttons only "reset" input content to its original
value rather than clearing it. This doesn't work for Whoogle's needs,
since inputs on search result pages are auto populated with the search
content as their default value.
A reset button was introduced anyways, but is controlled by a few lines
of javascript to allow completely clearing the search input. The button
will only appear on mobile searches.
At the moment, it isn't particularly pretty, but is functional. It uses
just a plain "x" character and is always visible on mobile search result
pages. This leaves plenty of room for improvement moving forward.
Fixes#291
Introduces a new content security policy header for responses to all
requests to reduce the possibility of ip leaks to outside connections.
By default blocks all inline scripts, and only allows content loaded
from Whoogle.
Refactors a few small inline scripting cases in the project to their own
individual scripts.
Introduces a new javascript "utils" file, which includes a check for
matching the query against a set of tracking number regexes on page
load. If a match is found, the script prepends a link to the
(presumably) appropriate tracking page.
Referenced in #98
