In accurate Last-Modified header value
The value in the Last-Modified HTTP header may be inaccurate on the response for a /Spase/{$resourceType} request when the request contains a Style query parameter value that eliminates some cdaweb datasets. This inaccurate value is a result of the hdpws hack to add cdasws AccessInformation to cdaweb datasets. The Last-Modified value should be correct for all other existing cases and will be accurate when the original spase documents contain this additional AccessInformation and the current hack is eliminated.