Saving HTML data into localstorage?

[samjco]

    $('#btnSaveFormHTML').click(function() {
      var textToWrite = $('form#posts-filter').html();
      var textToWriteWrap = '<form id="posts-filter" method="get">'+textToWrite+'</form>';
      var textToWriteClean = textToWriteWrap.replace(/>[\n\t ]+</g, "><"); //minify
      var textFileAsBlob = new Blob([textToWriteClean], { type: 'text/html' }); //Do I need Blob?

       //..... LocalStorage code here??

   });