haxe-develop and flash-develop are the same thing, haxe-develop is just a re-branding of flash-develop.
So i think there is some fundamental mis-understanding here:
haxeui-core is an abstraction of a ui system, it uses many “backends” to achieve windowing, drawing, etc:
One of those backends is openfl (haxeui-openfl), openfl itself can target the browser, desktop, mobile. So when you are targeting js (in an openfl project) you also have access to the browser.
There is also haxeui-html5, this has nothing to do with openfl and is a totally separate backend - this backend uses html5 dom elements to achieve ui (and not openfl sprites).
So an app written in haxeui can target haxeui-html and haxeui-openfl as totally seperate backends, you can target both in seperate projects if you want:
haxelib run haxeui-core create html5 --flash-develophaxelib run haxeui-core create openfl --flash-develop
Run those in the same directory and you will have two seperate projects, one for haxeui-html5 and one for haxeui-openfl… they will however, share your code, and your layouts.
Does that make anymore sense?
Cheers,
Ian