What is MIME type "application/freeheromesh.composite+hamarc"?

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

The MIME type application/freeheromesh.composite+hamarc defines a custom file format. It is designed for a proprietary puzzle set used by the Free Hero Mesh system. This format bundles several puzzle elements into one file to be processed by specialized software.
Files of this type carry the extension FHM.

Main use case: It serves as a composite container for puzzle pieces in the Free Hero Mesh composite puzzle set.
Practical benefit: The MIME type helps systems and applications recognize the file as part of a dedicated puzzle-building or -solving process.
Functionality: It groups related data and resources so that the supporting application can open, display, and manipulate the composite set accurately.

The +hamarc suffix signifies that the file might follow a custom structure layered over standard application data. For a broader perspective on MIME types, refer to the IANA Media Types registry.

Associated file extensions

.fhm

Usage Examples

HTTP Header

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


    Content-Type: application/freeheromesh.composite+hamarc

HTML

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


    <a href="file.dat" type="application/freeheromesh.composite+hamarc">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', 'application/freeheromesh.composite+hamarc');
      res.end('Content here');
    }).listen(3000);

Associated file extensions

.fhm

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.