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/**
* This file expects a query string that's the upper-cased version of a file to
* be redirected to in the same directory. The redirect will also include
* added "secret data" as a query string.
*
* So if the request is `/path/redirect_with_query_args.sjs?FOO.JS` the redirect
* will be to `/path/foo.js?SECRET_DATA`.
**/
function handleRequest(request, response) {
// The secret data to include in the redirect to make the redirect URL
// easily detectable.
const secretData = "SECRET_DATA";
let pathBase = request.path.split("/").slice(0, -1).join("/");
let targetFile = request.queryString.toLowerCase();
let newUrl = `${pathBase}/${targetFile}?${secretData}`;
response.setStatusLine(request.httpVersion, 302, "Found");
response.setHeader("Cache-Control", "no-cache");
response.setHeader("Location", newUrl, false);
}