import pickle


def load_cachedfilestring(cache_folder, filename):
    """
    Loads the file string that has been previously cached in the cache folder.

    Args:
        cache_folder: A string representing the path of the cache folder.
        filename: A string representing the name of the file that is being loaded.

    Returns:
        The file string that loaded from the cache folder
        (returns an empty string if there is no string to load).
    """
    try:
        file_string = pickle.load(open(cache_folder + filename, 'rb'))
        return file_string
    except:
        return ""