Error message when the request failed, otherwise null.
Unique entry id generated by the collector.
Browser API used to initiate the request.
Request latency in milliseconds.
Uppercase HTTP method.
Known response payload size in bytes, or 0 when unavailable without reading the body.
Request body size in bytes when it can be estimated.
HTTP status code, or 0 when the request failed before receiving a response.
Unix timestamp in milliseconds for when the request was recorded.
Requested URL as seen by fetch or XMLHttpRequest.
Captured metadata for one fetch or XMLHttpRequest request.