signatureParams.signingString += `(request-target): ${req.method.toLowerCase()} ${req.path}`; results: '(request-target): get function getPath() { return this.getUrl().pathname; } ' req.path() replace req.path ，can work
signatureParams.signingString +=
(request-target): ${req.method.toLowerCase()} ${req.path};results:
'(request-target): get function getPath() {
return this.getUrl().pathname;
}
'
req.path() replace req.path ，can work