Using 4.11, i know its only a preview, aswell as the web browser itself being experimental, and this issue may already be on the list of things to do. But the issue somewhat exists in 4.10 also.
LoadString will not work in 4.11, loads to a white screen, its asif it responds to the function being called, but the string isnt loaded into the document.
LoadString WORKS on 4.10, (in the editor, and on windows but you have to copy CEF3 folder into build folder), but builds for android do not respond to the LoadString AT ALL (no white screen).
Many Thanks, Jez