JavaScript 文件的适当内容类型 header 是什么？

Question

I am delivering a JS response from a PHP file. When setting the Content-Type header which value should I use, application/javascript or text/javascript ?

What's the difference between the two?

Answer 1

According to the IANA Registered MIME media type list , JS has two registered MIME types; the obsolete text/javascript and the now official application/javascript .

Thus, use application/javascript .

Answer 2

According to IANA, on 2022-05-10, text/javascript should be used .

Who knows what it'll be in a year!

Answer 3

From Wikipedia on Internet Media Types

application/javascript: JavaScript; Defined in RFC 4329 but not accepted in IE 8 or earlier

There is also the deprecated text/javascript (which IE will probably not choke on).