A user want to avoid unnecessary requests by comparing the responses to query parameters with variations in casing. If the responses match, testing the parameter will cease.
For example, if appId and appID both receive the same status code, subsequent requests for APPID, AppID, etc. will not be sent.

A user want to avoid unnecessary requests by comparing the responses to query parameters with variations in casing. If the responses match, testing the parameter will cease.
For example, if
appIdandappIDboth receive the same status code, subsequent requests forAPPID,AppID, etc. will not be sent.