I just setup tab manager for facebook. The canvas appears to be working but instead of displaying the tabs I assigned, it displays one of those pages you'd see if a website has no content in the root directory. That's the best way I can describe it...Some browsers like chrome will display the following error:
"The webpage at https://steviemacnewyork.com/fbtab/?fbreveal=15-665&resize=1&new=1&head=1 might be temporarily down or it may have moved permanently to a new web address.
Error 501 (net::ERR_INSECURE_RESPONSE): Unknown error."
In other words it cannot find my content it appears. Below is a link to the page.