title: Google Storage Image Serving Cache
body: <p>Using the GoogleStorageTools class's <code>CloudStorageTools::getImageServingUrl</code> and then replacing the storage object of the image with another image of the same name, the old image is still displayed upon subsequent calls of <code>getImageServingUrl</code></p>
  
  <p>I tried using <code>CloudStorageTools::deleteImageServingUrl</code> and then <code>CloudStorageTools::getImageServingUrl</code> again, but this doesn't work.</p>
  
  <p>Is there any way to interact with Cloud Storage and tell it to refresh the image or the image URL? I'm guessing not, and am going to ensure the filenames are unique, instead, but it feels like there ought to be a way.</p>