lazy load breaks html validation Element script must not have attribute defer
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When enabling lazy load images in LSCache it generates code at the end of the HTML body. It generates the following opening tag for the javascript tag:
<script data-no-optimize=”1″ defer>….</script>
When you put that piece of code through W3 validator it says:
“Error: Element script must not have attribute defer unless attribute src is also specified.”
I am not sure why this in-line javascript has the defer boolean, but if it is not needed it should be removed to have web pages pass html validation.
Code generating this nopn-valid tag is in
./src/media.cls.phpat the end of private function _finalize().
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This is not an issue.
html validation very often relates to an outdated status. The Internet is often faster as any html specification, so you don’t have to care about any hints that code wouldn’t be HTML confirm. It is better to care about your content, because content matters to have success.
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