My redirect URL looks like this: http://joomla.development/main/administrator/index.php?option=OPTION&task=CALLBACK_TASK&service=SERVICE_NAME Which is also added to the application as a redirect URL. I keep getting 400 - Invalid redirect_uri. If I change it to something like http://joomla.development/main/administrator/index.php?id=* as I saw in another post it works but this callback has zero interest in me as I cannot use it. Having used plenty of other services with OAuth I never had any issue with them except constant contact. Anyone can give a clue why this happens? My redirect link to get the authorization code looks like this: https://api.cc.email/v3/idfed?client_id=' . $clientID . '&redirect_uri=' . rawurlencode($redirect_url) . '&scope=' . rawurlencode($this->scope) . '&response_type=code
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