Downloading PDF as Blob with JS in IE9

问题:

I have a blob and want to download it. It works for Chrome, Firefox, IE10 and higher. The problem is IE9.

                    var isIE = /*@cc_on!@*/false || !!document.documentMode;                       var blob = new Blob([data], {type: "application/pdf"});                     if (isIE) {                         window.navigator.msSaveOrOpenBlob(blob, "Download.pdf");                     } else {                         var link = document.createElement('a');                         link.href = window.URL.createObjectURL(blob);                         link.download = "Download.pdf";                         link.id = "TEST";                         $('body').append(link);                         document.getElementById("TEST").click();                     } 

Where is the problem? The IE has 2.083 as maximal limit for chars in URL. Maybe this is critical. What alternatives do I have? I have to support IE9... Thanks.

回答1:

As you can read here the Blob constructor is supported from IE version 10. You may want to use PDF.js.

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