Input File upload in HTML5 page embedded as webresource in CRM 2013 RRS feed

  • Question

  • I have a HTML5 page containing input file upload control. I am using filereader to read a text file and it works absolutely fine when I hoST the HTML page in IIS with IE10. But when I upload the HTML page in CRM 2013 as web resource and call the page (opens in a new window) from a link in CRM 2013 Ribbon, it fails to read the file and throws error "Filreader not supported with this browser", though CRM is also opened in IE 10. I am using following code. Not sure whats wrong with Filereader compatibility with CRM 2013. Any suggestion?

        <script type="text/javascript">

            function checkfile(sender) {

                var validExts = ".csv";

                var fileExt = sender.value;         

                fileExt = fileExt.substring(fileExt.lastIndexOf('.'));

                if (validExts.indexOf(fileExt) < 0) {

                    alert("Invalid file selected, valid files is of " +

                             validExts + " types.");

                    return false;


                else {              


                 //   return true;



            function handleFiles(files) {



                // Check for the various File API support.

                if (window.FileReader) {

                    // FileReader are supported.


                } else {

                    alert('FileReader are not supported in this browser.');



            function getAsText(fileToRead) {

                var reader = new FileReader();

                // Read file into memory as UTF-8     


                // Handle errors load

                reader.onload = loadHandler;

                reader.onerror = errorHandler;


            function loadHandler(event) {

                var csv = event.target.result;





        <meta charset="utf-8" />


       <!-- <meta http-equiv="X-UA-Compatible" content="IE=10">-->




        <input type="file" name="datafile"  accept=".csv" onchange="checkfile(this);" />




    Friday, February 14, 2014 7:25 PM

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