From f333a9af74df1ea9be058860bfd7796b1e0a6ff6 Mon Sep 17 00:00:00 2001
From: Ilker Kulgu <i.kulgu@gmail.com>
Date: Wed, 23 Aug 2017 09:30:36 +0200
Subject: [PATCH] IE & Edge fix for downloading blob files, gives option to
 save or open the file when the link is opened.

---
 themes/default/public/js/lufi-down.js | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/themes/default/public/js/lufi-down.js b/themes/default/public/js/lufi-down.js
index 3285fdf..671c302 100644
--- a/themes/default/public/js/lufi-down.js
+++ b/themes/default/public/js/lufi-down.js
@@ -97,7 +97,13 @@ function spawnWebsocket(pa) {
 
                     var pbd  = $('#pbd');
                     pbd.attr('class', 'center-align');
-                    var blobURL   = URL.createObjectURL(blob);
+                    // IE & Edge fix for downloading blob files, gives option to save or open the file when the link is opened.
+                    if (window.navigator && window.navigator.msSaveOrOpenBlob) {
+                        var fileName = escapeHtml(data.name);
+                        window.navigator.msSaveOrOpenBlob(blob, fileName);
+                    } else {
+                        var blobURL   = URL.createObjectURL(blob);
+                    }
                     var innerHTML = ['<p><a href="', blobURL, '" class="btn btn-primary" download="', escapeHtml(data.name), '">', i18n.download, '</a></p>'];
 
                     if (data.type.match(/^image\//) !== null) {