Corona VR is in fact a separate app, there's no iOS version at present.
Since Corona VR doesn't generate or use any HTML, I take it you are exporting and generating HTML using something else (that is, using Corona to render a VR image, but then something else to generate the HTML for viewing that image in a browser) - to avoid confusion, probably worth a separate thread on the topic, with information on what you were using to create the HTML, then perhaps some iOS users will be able to share how they get things working with Safari.