As a general rule, you should not trust the HTTP Referer Header for any matter of importance, except for purely informative statistical analysis of who your visitors are or when looking for patterns of behaviour among the users of your own site. Under no circumstance it is advisable that you use this header for AAA … Read more
Here’s a quick list… let me know if I missed one you are interested in. http://www.geekpedia.com/code47_Detect-operating-system-from-user-agent-string.html: // Match user agent string with operating systems Windows 3.11 => Win16, Windows 95 => (Windows 95)|(Win95)|(Windows_95), Windows 98 => (Windows 98)|(Win98), Windows 2000 => (Windows NT 5.0)|(Windows 2000), Windows XP => (Windows NT 5.1)|(Windows XP), Windows Server 2003 … Read more
Yes HTTP RFC2616 available here says: Multiple message-header fields with the same field-name MAY be present in a message if and only if the entire field-value for that header field is defined as a comma-separated list [i.e., #(values)]. It MUST be possible to combine the multiple header fields into one “field-name: field-value” pair, without changing … Read more
By default, CORS does not include cookies on cross-origin requests. This is different from other cross-origin techniques such as JSON-P. JSON-P always includes cookies with the request, and this behavior can lead to a class of vulnerabilities called cross-site request forgery, or CSRF. In order to reduce the chance of CSRF vulnerabilities in CORS, CORS … Read more
The best HTTP header for your client to send an access token (JWT or any other token) is the Authorization header with the Bearer authentication scheme. This scheme is described by the RFC6750. Example: GET /resource HTTP/1.1 Host: server.example.com Authorization: Bearer eyJhbGciOiJIUzI1NiIXVCJ9TJV…r7E20RMHrHDcEfxjoYZgeFONFh7HgQ If you need stronger security protection, you may also consider the following IETF … Read more
In case of CORS requests, browsers can only access the following response headers by default: Cache-Control Content-Language Content-Type Expires Last-Modified Pragma If you would like your client app to be able to access other headers, you need to set the Access-Control-Expose-Headers header on the server: Access-Control-Expose-Headers: Access-Token, Uid
In short: Only ASCII is guaranteed to work. Some non-ASCII bytes are allowed for backwards compatibility, but are not supposed to be displayable. HTTPbis gave up and specified that in the headers there is no useful encoding besides ASCII: Historically, HTTP has allowed field content with text in the ISO-8859-1 charset [ISO-8859-1], supporting other charsets … Read more
It’s the number of bytes of data in the body of the request or response. The body is the part that comes after the blank line below the headers.
An HTTP multipart request is an HTTP request that HTTP clients construct to send files and data over to an HTTP Server. It is commonly used by browsers and HTTP clients to upload files to the server. What it looks like See Multipart Content-Type See multipart/form-data
I’m not sure about your exact version, but Chrome has a tab “Network” with several items and when I click on them I can see the headers on the right in a tab. Press F12 on windows or ⌥⌘I on a mac to bring up the Chrome developer tools.