SSIA. If a valid width/height is not set, we use the viewport dimensions for the viewport computation.
Created attachment 146845 [details] Patch
Created attachment 146846 [details] Patch
Comment on attachment 146846 [details] Patch r=me, but please add the missing device{Width/Height}Changed signal emissions in the setters when the value changed.
it looks okay to me, not sure whether QQuickWebViewExperimental should have this set-get pair, but I am not an API person.
ah, r+ already. goody then.
Landed in r119975