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xml - XHTML 5 Prologue vs XHTML 1 Prologue

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xml - XHTML 5 Prologue vs XHTML 1 Prologue

Are there any differences between prologues of XHTML 1 and XHTML 5? Is it possible to find out whether a document is XHTML 1 or XHTML 5 simply by looking at its prologue?

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A strictly conforming XHTML 1.0 document will include an XHTML 1.0 Doctype.

Non-strictly conforming XHTML 1.0 documents and XHTML 5 documents will not. So it will let you identify some XHTML 1.0 documents, but not all.


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