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.
I know this is an old post but it is still very relevant. I have found that modern browsers support rfc5987, which allows utf-8 encoding, percentage encoded (url-encoded). Then Naïve file.txt becomes: Content-Disposition: attachment; filename*=UTF-8”Na%C3%AFve%20file.txt Safari (5) does not support this. Instead you should use the Safari standard of writing the file name directly in … Read more
-D, –dump-header <file> Write the protocol headers to the specified file. This option is handy to use when you want to store the headers that a HTTP site sends to you. Cookies from the headers could then be read in a second curl invocation by using the -b, –cookie option! The -c, –cookie-jar option is … Read more
I had this same question, and found some info in my searches (your question came up as one of the results). Here’s what I determined… There are two sides to the Cache-Control header. One side is where it can be sent by the web server (aka. “origin server”). The other side is where it can … Read more
Header names are not case sensitive. From RFC 2616 – “Hypertext Transfer Protocol — HTTP/1.1”, Section 4.2, “Message Headers”: Each header field consists of a name followed by a colon (“:”) and the field value. Field names are case-insensitive. The updating RFC 7230 does not list any changes from RFC 2616 at this part.
The recommendation is was to start their name with “X-“. E.g. X-Forwarded-For, X-Requested-With. This is also mentioned in a.o. section 5 of RFC 2047. Update 1: On June 2011, the first IETF draft was posted to deprecate the recommendation of using the “X-” prefix for non-standard headers. The reason is that when non-standard headers prefixed … Read more
The standard Media Type (formerly known as MIME types) is application/pdf. The assignment is defined in RFC 3778, The application/pdf Media Type, referenced from the Media Types registry. Media Types are controlled by a standards body, The Internet Assigned Numbers Authority (IANA). This is the same organization that manages the root name servers and the … Read more
TL;DR Summary; if you have binary (non-alphanumeric) data (or a significantly sized payload) to transmit, use multipart/form-data. Otherwise, use application/x-www-form-urlencoded. The MIME types you mention are the two Content-Type headers for HTTP POST requests that user-agents (browsers) must support. The purpose of both of those types of requests is to send a list of name/value … Read more
When you make a POST request, you have to encode the data that forms the body of the request in some way. HTML forms provide three methods of encoding. application/x-www-form-urlencoded (the default) multipart/form-data text/plain Work was being done on adding application/json, but that has been abandoned. (Other encodings are possible with HTTP requests generated using … Read more
man curl: -H/–header <header> (HTTP) Extra header to use when getting a web page. You may specify any number of extra headers. Note that if you should add a custom header that has the same name as one of the internal ones curl would use, your externally set header will be used instead of the … Read more