function isBlobUri(uri) {
  //>>includeStart('debug', pragmas.debug);
  Check.typeOf.string("uri", uri);
  //>>includeEnd('debug');

  return blobUriRegex.test(uri);
}
Determines if the specified uri is a blob uri.

@function isBlobUri

@param {string} uri The uri to test.
@returns {boolean} true when the uri is a blob uri; otherwise, false.

@private