wbr.setRequestUrl(payloadUri);
SearchResults results = queryIndex(wbr);
if(!(results instanceof CaptureSearchResults)) {
throw new ResourceNotAvailableException("Bad results looking up " + payloadTimestamp + " " + payloadUri);
}
CaptureSearchResults payloadCaptureResults = (CaptureSearchResults) results;
payloadLocation = getReplay().getClosest(wbr, payloadCaptureResults);
}