Rendering the uploaded file in a wp.media object
I presume you’ve fixed this already but (in a blatant attempt to snaffle the bounty and) as mentioned in the comments there’s a simple fix, in your myplugin_meta_box_callback() function change the line $mime_types = array( ‘application/pdf’ ); to $mime_types=”application/pdf”; The library.type option to wp.media expects a string (which can be comma-separated with additional types) not … Read more