Check out the behavior explained over below thread: https://salesforce.stackexchange.com/questions/230480/using-iframe-to-show-external-website-but-it-is-just-blank
You could try to understand it and based on which modify the things to prevent webpages from loading.
Hope above information helps. Please mark as Best Answer so that it can help others in future.
Check out the behavior explained over below thread:
https://salesforce.stackexchange.com/questions/230480/using-iframe-to-show-external-website-but-it-is-just-blank
You could try to understand it and based on which modify the things to prevent webpages from loading.
Hope above information helps. Please mark as Best Answer so that it can help others in future.
Thanks.