How to set additional parameter in wp.media?

Question

I have this code.

$('.custom-browse-button').on('click', function(e) {
    e.preventDefault();

    var wpMedia = wp.media.frames.file_frame = wp.media({
        'library': {
            type: 'image'
        },
        'multiple': true
    });
    wpMedia.open()
        .on('select', function(e) {
            var uploaded_image = wpMedia.state().get('selection').toJSON();
            // already done with select.
            console.log(uploaded_image);
        });
});

In ajax request there are these parameters in the method POST:

action:query-attachments
post_id:0
query[post_mime_type]:image
query[orderby]:date
query[order]:DESC
query[posts_per_page]:40
query[paged]:1

I want to add something more fore checking and hooks. Example: my_filtered_user_id=3 OR media_width_eqm=1000

How to add these things in wp.media?

Update: Now I am able to send parameter to upload hooks using this answer.
However I still unable to send GET or POST data to browse media hooks (ajax_query_attachments_args) using that answer.

$('.custom-browse-button').on('click', function(e) {
    e.preventDefault();

    var wpMedia = wp.media.frames.file_frame = wp.media({
        'library': {
            type: 'image'
        },
        'multiple': true
    });
    wpMedia.uploader.options.uploader.params.my_filtered_user_id = 3;
    wpMedia.open()
        .on('select', function(e) {
            var uploaded_image = wpMedia.state().get('selection').toJSON();
            // already done with select.
            console.log(uploaded_image);
        });
});

Answer 1

I've been searching for this answer too and found it using this answer. You just need to add a property to the library object:

var wpMedia = wp.media.frames.file_frame = wp.media({
    'library': {
        type: 'image',
        custom_var: 'webhead'
    },
    'multiple': true
});

Then in PHP you can see the custom variable in the ajax_query_attachments_args hook like so:

function webhead_ajax_query_attachments_args() {
    var_dump($_REQUEST['query']['custom_var']);
    exit;
}
add_filter( 'ajax_query_attachments_args', 'webhead_ajax_query_attachments_args' );