// mime type · font / multipart type
multipart/form-data
Form submission with file uploads
What multipart/form-data is
multipart/form-data encodes a form submission as multiple parts, each with its own headers — the type you must use when a form uploads files. The browser sets it automatically (with a boundary) when a form has enctype="multipart/form-data".
How it's used
You'll see this as a Content-Type value on requests and responses — for example Content-Type: multipart/form-data. Font types identify web font formats loaded via @font-face; multipart types bundle several parts in one request body.