javascript - method to save file in html? -

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so have been messing around html , literally canvas, creates drawing board you, , got have export button on page. when hit button opens new page image; want accomplish have save file locally on webserver when hits button.

the line opens drawing is:

      window.open(lc.getimage().todataurl());

is there way accomplish this?

here's full code.

<html>   <head>     <!-- stylesheet -->     <link href="/draw/literallycanvas-0.4.1/css/literallycanvas.css" rel="stylesheet">      <!-- dependency: react.js -->     <script src="http://cdnjs.cloudflare.com/ajax/libs/react/0.10.0/react-with-addons.js"></script>      <!-- literally canvas -->     <script src="/draw/literallycanvas-0.4.1/js/literallycanvas.js"></script>   </head>   <body>     <!-- widget goes. can css it. -->       <!-- kick off -->     <script src="//ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></src>     <script>         // ma, no jquery!         lc.init(             document.getelementsbyclassname('literally')[0],             {imageurlprefix: '/draw/literallycanvas-0.4.1/lib/img'}         );          /* or if love jquery,             $('.literally').literallycanvas({imageurlprefix: '/draw/literallycanvas-0.4.1/lib/img'})         */       </script>   <div class="literally export"></div> <form class="controls export">   <input type="submit" data-action="export-as-png" value="export png"> </form> <script src="//ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <script>   $(document).ready(function() {     var lc = lc.init(document.getelementsbyclassname('literally export')[0]);     $('.controls.export [data-action=export-as-png]').click(function(e) {       e.preventdefault();       window.open(lc.getimage().todataurl());     });   }); </script>        </body> </html>

you won't able save image webserver, on client side. best bet upload image after getting dataurl. question shows how that: how save html5 canvas image on server


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