textTransformation

Text transformations used to eliminate unusual formatting that attackers use in web requests in an effort to bypass AWS WAF. If you specify a transformation, AWS WAF performs the transformation on field_to_match before inspecting a request for a match. e.g., CMD_LINE, HTML_ENTITY_DECODE or NONE. See docs for all supported values. Note: if you choose BODY as type, you must choose NONE because CloudFront forwards only the first 8192 bytes for inspection.