I tested the integration with BackBlaze B2 on two different hosting providers, and got the following behavior:
*Hostgator: Cannot establish a connection with B2 because the Content-Length header is missing.
*Locaweb: Can establish a connection with B2, sends files around 2MB but with 3.7GB file the following error was returned: Script timed out before returning headers.
Note: These are shared hosting.
Do you have any suggestions so I can solve both cases?