Disabling zoom gestures of a webkit2 browser (with Gnome JS bindings)

You could test this on linux: wget [login to view URL] gjs browser As you can see, the browser works but the user could still zoom in and zoom out (touch gestures), and that is what i DO NOT WANT. This projects requires you to disable the zoom gesture at all, no matter if changing the browser script (using GTK WebKit2 4.0 API) or the served html page. The user SHOULD NOT change zoom.