What is MIME type "text/x-iosrc"?

A MIME type is a string that tells browsers and other tools how to handle a particular kind of file.

text/x-iosrc identifies files containing Io language source code. It signals that the file is plain text but follows a structure meant for a programming language rather than a simple document.

Tools like code editors and integrated development environments recognize this MIME type and use it for features such as syntax highlighting and code folding.

Source Code Management: Ensures Io code files are processed as text and highlights language-specific structures.
Development Tool Integration: Helps IDEs and linters apply the right parsing rules for error detection and formatting.
Content Recognition: Allows systems to associate scripts with Io’s prototype-based programming style.

Files using this MIME type usually have the extension IO.

For further technical details, visit the Io language documentation.

Associated file extensions

.io

Usage Examples

HTTP Header

When serving content with this MIME type, set the Content-Type header:


    Content-Type: text/x-iosrc

HTML

In HTML, you can specify the MIME type in various elements:


    <a href="file.dat" type="text/x-iosrc">Download file</a>

Server-side (Node.js)

Setting the Content-Type header in Node.js:


    const http = require('http');
    
    http.createServer((req, res) => {
      res.setHeader('Content-Type', 'text/x-iosrc');
      res.end('Content here');
    }).listen(3000);

Associated file extensions

.io

FAQ

What is a MIME type?

A MIME (Multipurpose Internet Mail Extensions) type is a standard that indicates the nature and format of a document, file, or assortment of bytes. MIME types are defined and standardized in IETF's RFC 6838.

MIME types are important because they help browsers and servers understand how to process a file. When a browser receives a file from a server, it uses the MIME type to determine how to display or handle the content, whether it's an image to display, a PDF to open in a viewer, or a video to play.

MIME types consist of a type and a subtype, separated by a slash (e.g., text/html, image/jpeg, application/pdf). Some MIME types also include optional parameters.

How do I find the MIME type for a file?

You can check the file extension or use a file identification tool such as file --mime-type on the command line. Many programming languages also provide libraries to detect MIME types.

Why are multiple MIME types listed for one extension?

Different applications and historical conventions may use alternative MIME identifiers for the same kind of file. Showing them all helps ensure compatibility across systems.