According to the documentation at https://cloud.google.com/load-balancing/docs/quotas#https-lb-header-limits, the limit for request header size for external ALBs is 64KB. However, all of our 431 Request Header Fields Too Large responses have request sizes of ~16KB or more, and would succeed if the limit were actually 64KB.
Is this documentation incorrect, or is there another consideration that we're overlooking?
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