Quote:
Originally Posted by mzmm
Javascript was actually supported (although its use was discouraged) in epub2, so it's really always been up to the device to be able to handle it properly.
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Ehh, what? If you look at the specifications, it is stated that 'Reading Systems
must not render the textual content of the script element, and
should not execute the script itself.' (emphasis not mine).
So what you state is not correct. The fact that some readers (or rather reading applications) do support it, is because they used a web renderer like webkit instead of developing a ePUB renderer.