<iframe 
src="/myLocalIframe.html"
frameborder="0"
allow="fullscreen; vr"
id="myLocalIframe"
sandbox="allow-same-origin allow-scripts allow-pointer-lock"
style="top: 0px; left: 0px; bottom: 0px; right: 0px;  
height: 300px; border: none; margin: 0; padding: 0; overflow: hidden;
pointer-events: auto;"></iframe>