If you need to show the video in an IFrame, we have a short manual how to achieve that:
- First you need to create a new page template, which will be almost blank. You will need to keep there only basic html tags, and following three wp calls: wp_head, the_content and wp_footer
See How to create page template on wordpress.org to create the template or download the following example video-iframe.zip.
- Next create a new page where you will place the shortcode for a video
- Assign this blank template to a video
- And put it into an iframe:
Your browser does not support iframes.
Video below is an iframe: