Update LTI_Message_Launch.php get_public_key method #85
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I can't say exactly when this started happening but all of my instances of LTI connection via Moodle 4.1.4 failed with PHP Warning: file_get_contents(https://moodletesting.tiltroleplay.com/mod/lti/certs.php): failed to open stream: HTTP request failed! HTTP/1.1 403 Forbidden. In case anyone else runs into this issue either edit this method yourself or employ CURL to do same but if in WP environment can't always rely on CURL being enabled or as an option by host.