What is MIME type "application/x-cba"?
A MIME type is a string that tells browsers and other tools how to handle a particular kind of file.
application/x-cba is a MIME type for a comic book archive format that bundles images in a single file. It is used to store and compress pages of a comic book for easy distribution and reading.
When you see a file with this MIME type, it often has the file extension CBA.
- Main use: Bundling sequential images into one archive for comic book readers.
- Additional use: Compressing the data to reduce file size while preserving the order of comic panels.
- Key fact: It uses the ACE compression method, which can require specific software to open or extract.
- Practical detail: It is less common than other comic archive formats but serves the same purpose in digital comic distribution.
For more details on this file type, check out additional resources on CBA files.
Associated file extensions
Usage Examples
HTTP Header
When serving content with this MIME type, set the Content-Type header:
Content-Type: application/x-cba
HTML
In HTML, you can specify the MIME type in various elements:
<a href="file.dat" type="application/x-cba">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/x-cba');
res.end('Content here');
}).listen(3000);
Associated file extensions
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.