`node.trigger(:input)` doesn't dispatch an `input` event

[janko]

From following the JavaScript code, I believe that node.trigger(:input) currently ends up calling this.dispatchEvent('input'). However, that isn't the correct way to dispatch this event, it should be this.dispatchEvent(new Event('input')).

That's presumably the reason why the Cuprite JavaScript class defines a special input() function, instead of calling trigger().

cuprite/lib/capybara/cuprite/javascripts/index.js

Lines 182 to 186 in 2bbf363

	input(node) {
	let event = document.createEvent("HTMLEvents");
	event.initEvent("input", true, false);
	node.dispatchEvent(event);
	}

[jcoyne]

Additionally, shouldn't this event have a property like: { inputType:"insertText" }?