401

Advanced iframe debug console - l: local messages, r: remote messages
User agent: CCBot/2.0 (https://commoncrawl.org/faq/)

Headers of https://www.solecki.ca/bayshore/socast-fetch.php?source=MTO-EVENT:
HTTP/2 200
x-powered-by: PHP/5.6.40
access-control-allow-origin: 0
vary: Accept-Encoding
content-type: text/html; charset=UTF-8
date: Sat, 25 Jun 2022 02:20:43 GMT
server: Apache

The page does exist and no X-Frame-Options header was found. But there can still be a iframe blocker script on this page. Go here for a full check.