Alternate text for iframes

Question

We have alternate text, alt attribute, for an img tag in HTML, which will show up when the image doesn\'t come up. I tried using the tag with

Answer 1

Since my first attempt misunderstood your question, let's try this instead:

This will read the "alt" tag value for any iframe with either no src attribute or a src attribute with a blank value, and write the alt text into the body of that iframe.

Assist from Write elements into a child iframe using Javascript or jQuery