HTML5 compliance for Youtube service #760
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If we use "videoID" as a custom attribute for YouTube integration, HTML5 validator fails with the message "Error: Attribute videoID not allowed on element div at this point." We must use data-* prefix to define custom attributes, according to the HTML5 spec : https://www.w3.org/TR/html52/dom.html#embedding-custom-non-visible-data-with-the-data-attributes This commit is inspired by the Vimeo service integration.
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If we use "videoID" as a custom attribute for YouTube integration, HTML5 validator fails with the message "Error: Attribute videoID not allowed on element div at this point."
We must use data-* prefix to define custom attributes, according to the HTML5 spec :
https://www.w3.org/TR/html52/dom.html#embedding-custom-non-visible-data-with-the-data-attributes
This commit is inspired by the Vimeo service integration.