Forum Discussion
WebSocket connection to 'wss://...' failed: Invalid frame header
Hello,
Can you post TMOS version and any relevant ASM event logs when a WSS is made? Can you provide more details on your VS configuration as well? Quick search shows ASM/WAF in relation to WebSocket.. The BIG-IP ASM system fails to detect WebSocket URLs. Also you might want to review this other community article which might address this issue:BIG-IP WAF Causes WSS Connections to Stall | DevCentral
Hello
os version 17.5.1 asm template rapid deployment and Differentiate between HTTP/WS and HTTPS/WSS URLs is enable
config on vs
stream enable to replace http to https port vs https and pool http
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