http-equiv Attributehttp-equiv AttributeThe http-equiv attribute may be used instead of the
name attribute on the
meta element.
Its value should be the name of a HTTP
header (e.g. "Content-Type", "Content-Style-Type", "Content-Script-Type") and its
presence states that the value of the content
attribute is intended to mimic that HTTP header (as if that header had been sent
directly from the server). This behaviour can be useful to specify headers
for those documents which are not being served by a web server.