content-type - w3toppers.com

Difference between application/x-javascript and text/javascript content types

The JavaScript MIME Type When sending JavaScript content, you should use text/javascript as per RFC 9239. Aliases application/javascript, application/x-javascript, text/javascript1.0, text/javascript1.1, text/javascript1.2, text/javascript1.3, text/javascript1.4, text/javascript1.5, text/jscript, and text/livescript are deprecated aliases for it. If you are writing a tool which consumes JavaScript (e.g. an HTTP client) then you should consider supporting them for backwards compatibility. … Read more

Determine file type in Ruby

There is a ruby binding to libmagic that does what you need. It is available as a gem named ruby-filemagic: gem install ruby-filemagic Require libmagic-dev. The documentation seems a little thin, but this should get you started: $ irb irb(main):001:0> require ‘filemagic’ => true irb(main):002:0> fm = FileMagic.new => #<FileMagic:0x7fd4afb0> irb(main):003:0> fm.file(‘foo.zip’) => “Zip archive … Read more

How to get content type of a web address?

it should be something like this var request = HttpWebRequest.Create(“http://www.google.com”) as HttpWebRequest; if (request != null) { var response = request.GetResponse() as HttpWebResponse; string contentType = “”; if (response != null) contentType = response.ContentType; }

Slack incoming webhook: Request header field Content-type is not allowed by Access-Control-Allow-Headers in preflight response

That Slack API endpoint unfortunately appears to be broken in its handling of cross-origin requests from frontend JavaScript code—in that it doesn’t handle the CORS preflight OPTIONS request as it should—so the only solution seems to be to omit the Content-Type header. So it looks like you need to remove the following from the headers … Read more

Is there a java library equivalent to file command in unix

A quick google search (for the admittedly non-obvious) “java magic file detection” brings up a fairly nice looking article, “Get the Mime Type from a File” which suggests you use one of the following: Apache Tika JMimeMagic

How to get MIME-TYPE from Base 64 String?

You can use magic numbers to detect a MIME type (check here the list of file signatures). However, file signatures are not 100% reliable and you can easily encounter false positives. Of course, there are tasks when a such solution is more than enough. So if you have a Base64 string and want to identify … Read more

Spring MVC 4: “application/json” Content Type is not being set correctly

First thing to understand is that the RequestMapping#produces() element in @RequestMapping(value = “/json”, method = RequestMethod.GET, produces = “application/json”) serves only to restrict the mapping for your request handlers. It does nothing else. Then, given that your method has a return type of String and is annotated with @ResponseBody, the return value will be handled … Read more

Http Post with request content type form not working in Spring MVC 3

Unfortunately FormHttpMessageConverter (which is used for @RequestBody-annotated parameters when content type is application/x-www-form-urlencoded) cannot bind target classes (as @ModelAttribute can). Therefore you need @ModelAttribute instead of @RequestBody. If you don’t need to pass different content types to that method you can simply replace the annotation: @RequestMapping(method = RequestMethod.POST) public ModelAndView create(@ModelAttribute UserAccountBean account) { … … Read more

Is header(‘Content-Type:text/plain’); necessary at all?

Define “necessary”. It is necessary if you want the browser to know what the type of the file is. PHP automatically sets the Content-Type header to text/html if you don’t override it so your browser is treating it as an HTML file that doesn’t contain any HTML. If your output contained any HTML you’d see … Read more

Content-Type header [application/x-www-form-urlencoded] is not supported on Elasticsearch

To fix this, add curl option -H ‘Content-Type: application/json’ This error is due to strict content-type checking introduced in ElasticSearch 6.0, as explained in this post Starting from Elasticsearch 6.0, all REST requests that include a body must also provide the correct content-type for that body.