2
If you look at the end of the function get_cancel_comment_reply_link( $text = '' ) in the file wp-includes/comment-template.php, you see the filter cancel_comment_reply_link.
return apply_filters( 'cancel_comment_reply_link', $formatted_link, $link, $text );
It may work.
1
In an environment without third party code, get_the_ID() should give you the correct value. It sounds like some plugin is interfering with this.
So you can do what they forgot and simply call
wp_reset_postdata()
in your footer before you need the values.
1
Ok got it, knew there must be some built-in WP solution to this. Simply call wp_get_referer() in your callback (for details, see this).
At least it's working as I need it, let me know if there's any better solution.
UPDATE
Thanks to @Tom J Nowell, we should also mention that referrers could get stripped for privacy reasons or similar. To thus be on the safe ...
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