I have two youtube iFrame custom code embeds using lazy loading on my website and in my console on chrome it constantly throws these errors: Failed to execute 'postMessage' on 'DOMWindow': The target origin provided ('<URL>') does not match the recipient window's origin ('<URL>'). (nothing functionality wise is broken) but this console error count will get into the hundreds after a couple minutes on the site.
Are these errors, or warnings? If they’re warnings they may be irrelevant and part of the debug messaging.
Are you using a straight-up IFRAME embed or are you using the YouTube js api to initialize the player?
Are you trying to use JS in your page to interact with the player?
postMessage is used as a communication vehicle since your website has a different origin than the IFRAME contents. It’s likely complaining that it wasn’t configured with a correct origin for that communication to work.
But again that may not matter at all, if you’re not needing to communicate with it in your custom code.
