“From object to iframe(iframes in detail)” says:
you can include fallback content between the opening and closing <iframe></iframe> tags
However, if I actually try to do that, W3C HTML Validator says:
Text not allowed in element iframe in this context.
I haven’t found how to include fallback content without such a error. How can I achieve that?
Good observation, @user-p.
The iframe article and the specifications say that no content is allowed. So it seems it’s not possible anymore to build a valid HTML document with iframe fallback content. This makes kind of sense because even older versions of Internet Explorer support iframes. There aren’t any browsers left that need a fallback.
You could open an issue on the MDN GitHub for this error in the article.
Have a nice day,
Michael
I appreciate checking the article, your explanation, and showing me the example what I can do; I wasn’t too sure about what I should/can do after finding such a problem.