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by nyrikki
433 days ago
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Cloudflare doesn't officially support SSE, but if you send keepalives events every 15 or 20sec or so you can reliably use SSE for 40 min + in my experiance. No server traffic for 100+ sec officially results in a 524, so you could possibly make that keepalive interval longer, but I haven't tested it. Make sure to have the new style cache rule with Bypass cache selected and absolutely make sure you are using HTTP/2 all the way to the origin. The 6 connections per browser limit of HTTP/1.1 SSE was painful, and I am pretty sure auto negotiation breaks, often in unexpected ways with a HTTP/1.1 origin. |
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