code: public static String computeIdentityUrl(WaybackRequest wbRequest) {
  		AccessPoint accessPoint = wbRequest.getAccessPoint();
  
  		boolean origIdentity = wbRequest.isIdentityContext();
  		wbRequest.setIdentityContext(true);
  		
  		ArchivalUrl aUrl = new ArchivalUrl(wbRequest);
  		String bestPath = aUrl.toString();
  		String betterURI = accessPoint.getReplayPrefix() + bestPath;
  
  		//reset the isIdentity flag just in case
  		wbRequest.setIdentityContext(origIdentity);
  		
  		return betterURI;
  	}
docs: build replay Archival-URL for the same capture as request
  {@code wbRequest}, with identity-context ({@code id_}) flag on.
  <p>
  REFACTOR: move this method to {@link ArchivalUrl}.
  </p>
  @param wbRequest requested capture and URL scheme info.
  @return URL string