WebAclHeadersArgs

The filter to use to identify the subset of headers to inspect in a web request. You must specify exactly one setting: either All , IncludedHeaders , or ExcludedHeaders . Example JSON: "MatchPattern": { "ExcludedHeaders": [ "KeyToExclude1", "KeyToExclude2" ] }

The parts of the headers to match with the rule inspection criteria. If you specify ALL , AWS WAF inspects both keys and values. All does not require a match to be found in the keys and a match to be found in the values. It requires a match to be found in the keys or the values or both. To require a match in the keys and in the values, use a logical AND statement to combine two match rules, one that inspects the keys and another that inspects the values.

What AWS WAF should do if the headers of the request are more numerous or larger than AWS WAF can inspect. AWS WAF does not support inspecting the entire contents of request headers when they exceed 8 KB (8192 bytes) or 200 total headers. The underlying host service forwards a maximum of 200 headers and at most 8 KB of header contents to AWS WAF . The options for oversize handling are the following: