SSL and <html xmlns="http://www.w3.org/1999/xhtml" > tag

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1

This tag is making my https page partially insecure: <html xmlns=“http://www.w3.org/1999/xhtml”>

Just wondering how much the layout and behaviour of the page is going to be affected if I remove:

xmlns="http://www.w3.org/1999/xhtml"

…or add an ‘s’ to ‘http’?

2

Its not making your webpage insecure. Browsers don’t use it. Infact stop pretenting to use XHTML and just get rid of it. Just extra meaningless data stuffed into the markup.