NEW 278790
Hosting Misconfiguration on webkit.org 
https://bugs.webkit.org/show_bug.cgi?id=278790
Summary Hosting Misconfiguration on webkit.org
Daniel Smith
Reported 2024-08-28 07:39:12 PDT
Hello all, webkit.org and associated sites on the same hosting (e.g. browserbench.org) have a dual part configuration resulting in connectivity issues for some clients configured in a similar manner. The first component is the webserver infrastructure is configured with jumbo frames (i.e. an MTU greater than the standard 1500) on the order of ~8500 bytes causing a TCP MSS of 8373 to be sent back. The second component is the infrastructure filters ICMP. The net result is PMTUD is made unreliable, the connection (with a client also with jumbo frames) can be signalled to use >1500 byte frames, and the connection opens (TCP opening uses small packets which fit under a single 1500 byte packet) but hangs whenever actual page data starts to be sent. In general, the easiest way is to internet clamped to 1500 but I'm sure your infrastructure/network folks know the full gamut of options to resolve this so I'll leave the report at this for now :). Thank you, Daniel Smith
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Radar WebKit Bug Importer
Comment 1 2024-08-28 09:03:44 PDT
<rdar://problem/134859131>
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