Introduction to lite-embed for YouTube and Vimeo
lite-embed is a lightweight JavaScript embedding library designed to optimize the loading of YouTube and Vimeo videos. It improves page performance by replacing heavy <iframe> elements with a "fake" placeholder element of the same dimensions. This prevents the browser from loading numerous scripts and stylesheets required for a video thumbnail until the user actually clicks to play the video. Additionally, the library injects preload links into the document <head> upon hovering the element to optimize the loading of script domains.