Open all media of an Instagram post in new tabs (windows). (NOTE: Only works on direct post page links, not "lightboxed" posts from profile pages)

instagram-open-all-post-media.js

(function (scope) {
    /* NOTE: Comments are all in "block" form for easier bookmark one-lining */

    /* Public pages will hold their entry data here */
    let entries = scope._sharedData.entry_data.PostPage;

    /* If the data doesn't exist there... */
    if (entries[0].graphql === undefined) {
        /* Logged in pages will have the data stored in a different location */
        entries = Object.values(scope.__additionalData).map(x => x.data);
    }

    for (let entry of entries) {
        let entryMedia = entry.graphql.shortcode_media;

        if (entryMedia.edge_sidecar_to_children) {
            for (let edge of entryMedia.edge_sidecar_to_children.edges) {
                window.open(edge.node.display_url, "_blank");
            }
        } else {
            window.open(entryMedia.display_url, "_blank");
        }
    }
})(window);