Issue with Siteground Hosted Sites

[hgardner-omni]

Our company uses Siteground for hosting and get a Error:-337 Err_HTTP2_PROTOCOL_ERROR for the iPhone12Pro size. So I tested it with some other SiteGround Hosted sites and it has that error for all of them on the iPhone12 size. I even checked some of the sites on their client stories page. Same thing. I am assuming this means that this is and issue with SiteGround's servers? But why only that specific size? I am passing this along to their support as well (not sure if it will do any good), but was just wondering is anyone is seeing this?

[hgardner-omni]

Response from Siteground:
Thank you for contacting our Support Center!

I checked the matter and the problem is caused by the fact that the iPhone 12 Pro user-agent is marked as one used by malicious bots and is restricted on all our servers. I brought the matter to the attentionj of our system engineers, who will review it further during working hours, after which the ticket will be updated on your behalf.

I tested it with some of the other size simulators as well and there were several others that had the same behavior.