I have wp.media frame on my plugin to upload doc, docx file. I am filtering the uploaded file.
If uploaded other than supported file, it will display this error
I am filtering it at wp_handle_upload_prefilter
to check for supported file
However this filter will affect all other media uploader as well.
I think, if it is possible to add context to media uploader, i could check weather to filter or not.
EDIT 1:
My barebone js code to
// Create the media frame.
doc_uploader = wp.media.frames.file_frame = wp.media({
title: "Select Documents",
button: {
text: "Select Documents"
},
library : {
type: accepted_mime_types
},
multiple: true // Set to true to allow multiple files to be selected
});