Convert between URL querystring and JSON.

Description

  1. JSON to URL QueryString: Extract key-value pairs from the first level of the JSON object, using keys as parameter names in the URL and serializing values as their corresponding parameter values. If a value contains special characters, check the URL QueryString escape checkbox to encode them using encodeURIComponent.
  2. URL QueryString to JSON: If the parameter values in the URL contain percent-encoded characters, check the URL QueryString escape checkbox to decode the percent-encoded strings using decodeURIComponent.