Internet Explorer 4.x and 5 Do Not Support Content-Base Headers

ID: Q224579

The information in this article applies to:

Microsoft Internet Explorer versions 4.0, 4.01, 4.5 for Macintosh
Microsoft Internet Explorer versions 4.0, 4.01, 4.01 Service Pack 1, 4.01 Service Pack 2, 5 for Windows 95
Microsoft Internet Explorer versions 4.01, 5 for UNIX on HPUX
Microsoft Internet Explorer versions 4.0, 4.01, 4.01 Service Pack 1, 4.01 Service Pack 2, 5 for Windows NT 4.0
Microsoft Internet Explorer versions 4.01 Service Pack 2, 5 for Windows 98
Microsoft Internet Explorer versions 4.01, 5 for UNIX on Sun Solaris
Microsoft Internet Explorer versions 4.0, 4.01 for Windows 3.1

SUMMARY

Microsoft Internet Explorer does not support Hypertext Transfer Protocol (HTTP) version 1.1 Content-Base headers.

MORE INFORMATION

Request For Comment (RFC) number 2068 regarding version 1.1 of the Hypertext Transfer Protocol refers to, but does not require support for Content-Base headers:


14.11 Content-Base

   The Content-Base entity-header field may be used to specify the base
   URI for resolving relative URLs within the entity. This header field
   is described as Base in RFC 1808, which is expected to be revised.

          Content-Base      = "Content-Base" ":" absoluteURI

   If no Content-Base field is present, the base URI of an entity is
   defined either by its Content-Location (if that Content-Location URI
   is an absolute URI) or the URI used to initiate the request, in that
   order of precedence. Note, however, that the base URI of the contents
   within the entity-body may be redefined within that entity-body.

Note that Netscape Navigator and other third-party Web browser programs do not support Content-Base headers. The third-party products discussed here are manufactured by vendors independent of Microsoft; we make no warranty, implied or otherwise, regarding these products' performance or reliability.

Additional query words:

Keywords : kb3rdparty kbenv msiew95 msient msiew31 msiemac msieunix ie4sp1 msiew98
Version : MACINTOSH:4.0,4.01,4.5; UNIX:4.01,5; WINDOWS:4.0,4.01,4.01 Service Pack 1,4.01 Service Pack 2,5
Platform : MACINTOSH UNIX WINDOWS
Issue type : kbinfo