thickbox

I ended up solving this by changing my two functions to only one, and setting the “button” to show the iframe directly, like this: function add_custom_media_button() { $cu = wp_get_current_user(); $cusername = $cu->user_login; $clocale = get_locale(); echo ‘<a href=”http://nephila.cloudapp.net/GAdEWeb/wpsearch.aspx?wpuser=” . $cusername . “&wplang=’ . $clocale . ‘&TB_iframe=true&width=800&height=600″ id=”insert-my-media” class=”button thickbox”>Add custom media</a>’; } add_action(‘media_buttons’, ‘add_custom_media_button’, … Read more

This is possibly related to an issue in WordPress regarding cache that has just been fixed within the last hour: http://core.trac.wordpress.org/changeset/19318 Here’s the Trac ticket: http://core.trac.wordpress.org/ticket/19240 Clearing your cache may help in the meantime before beta 4/RC1

Show/hide button in thickbox depending on from which page it is opened

Update: Since the link is unavaiable anymore (linked a webarchive in comments but it’s still pretty old and buggy) I suggest to use this. It’s more efficient and reliable and does not require any file add-in or advanced knowledge being more detailed than the old one. Original I’ve bumped into this one before. Here, follow … Read more

Finally, I found the solution by replacing event handler! Old Scenario (WRONG) $(‘#TB_window’).on(‘click’, ‘.upload_media a.btn_media_upload’, function (e) { //Code } ); New (Working) $(‘body’).on(‘click’, ‘#TB_window .upload_media a.btn_media_upload’, function (e) { // Code });

Your are correct it cannot be changed and it looks like there has been no change on this since your question. There is a ticket if anyone is interested in working on this in the WordPress core… WordPress Core Trac