Validate files based on their mime type.

The FileMimeTypeValidator extension can be configured with the FileMimeTypeValidatorOptions object.

When using defineFilePond the value of the accept attribute on the <input type="file"> is automatically passed to this extension. 

import { defineFilePond } from 'filepond';
import { locale } from 'filepond/locales/en-gb.js';
import { FileMimeTypeValidator } from 'filepond/extensions/file-mime-type-validator.js';

defineFilePond({
    locale,
    extensions: [
        // Add the FileMimeTypeValidator extension and configure with FileMimeTypeValidatorOptions object
        [FileMimeTypeValidator, {
            accept: ['image/jpeg', 'image/png']
        }]
    ]
})