text: window.sampleL = ''; // enter your key here so that the samples will run
  
  if (!window.sampleL) {
    window.sampleL = localStorage.getItem('wv-sample-license-key') || window.location.search.slice(5);
    if (!window.sampleL) {
      window.sampleL = window.prompt('No license key is specified.\nPlease enter your key here or add it to license-key.js inside the samples folder.', '');
      if (window.sampleL) {
        localStorage.setItem('wv-sample-license-key', window.sampleL);
      }
    }
  }