Thanks to Anne Marie’s fantastic course at Lynda.com, I have been able to replicate my iBooks Author book into a fixed layout EPUB. Now that it is doing pretty much all the interactivity that I needed, I tried validating. I was able to easily correct a couple of errors, but one error I am hoping for a better solution.
My EPUB has a number of videos which are causing the errors, saying “Video element doesn’t provide fallback”. A quick Google search revealed that I could fix this error by putting in a fallback message such as:
<strong class=”fallback-message”>This device cannot play video.
in the <video> section. This does correct the validation errors but is very tedious to do, and will have to be done after every update. Is there any way to get the fallback message to be coded by InDesign when exporting?
Thanks in advance for any help.
Bob