javascript - How can I store persistent data with JS/JQuery using the file:/// protocol and IE/Edge browser? -


i'm writing small web page application users can dynamically drag , drop links files , pages on customisable homepage.

it written in html5 , javascript/jquery mobile. page stored on local machine , accessed 'file:///' protocol, using internet explorer / microsoft edge webbrowser.

i'm trying find way store data resembles customized page , links, when user opens page again links still there , can edited , customized further.

so far i've been looking html localstorage, doesn't work ie/edge through 'file:///' protocol, page not hosted. thinking of creating file data in there, don't believe possible either due security reasons.

i have not alot of experience javascript, appreciated!

if want work on internet explorer/microsoft edge, simple way persist data using cookies. work using file:// protocol, , thing setting far away expiration date (in example below: 2/2/2222).

try sample code (part of comes this site) count number of times page has been loaded. notice how counter kept after closing browser , reopening it:

<!doctype html> <html>   <head>     <title>persistent data cookies in ie</title>   </head>   <body>      number of reloads: <span id="num">-</span>      <script>     function setcookie(name, value)     {       var expiry = new date(2222,2,2);       document.cookie = name + "=" + escape(value) + "; path=/; expires=" + expiry.togmtstring();     }      function getcookie(name)     {       var re = new regexp(name + "=([^;]+)");       var value = re.exec(document.cookie);       return (value != null) ? unescape(value[1]) : null;     }      var cookieval = getcookie("num");     var num = cookieval != null ? cookieval : 0;     document.getelementbyid("num").innerhtml = num;         setcookie("num", parseint(num) + 1)     </script>   </body> </html>

pros of solution:

  • simple , easy implement.
  • works file:// protocol in ie , edge (as specified in question) , in firefox.

cons of solution:

  • limited storage space.
  • doesn't work file:// protocol in chrome (not required in question).

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