I remembered someone asked a question regarding
"application/x-javascript" in one of the earlier classes. Here is what
I found:
The traditional MIME type for JavaScript programs is
"text/javascript". Another type that has been used is
"application/x-javascript" (the "x" prefix indicates that it is an
experimental, nonstandard type). RFC 4329 standardized the
"text/javascript" type because it is in common use. However, because
JavaScript programs are not really text documents, it marks this type
as obsolete and recommends "application/javascript" (without the "x-")
instead. At the time of this writing, "application/javascript" is not
well supported, however. That might be the reason why
"application/x-javascript" is used by a lot of webpages.
Hope this information helps.
Wuping