remove Lib.isIE and cases

Author: archmoj

src/components/modebar/buttons.js

@@ -51,11 +51,6 @@ modeBarButtons.toImage = {
 
         Lib.notifier(_(gd, 'Taking snapshot - this may take a few seconds'), 'long');
 
-        if(opts.format !== 'svg' && Lib.isIE()) {
-            Lib.notifier(_(gd, 'IE only supports svg.  Changing format to svg.'), 'long');
-            opts.format = 'svg';
-        }
-
         ['filename', 'width', 'height', 'scale'].forEach(function(key) {
             if(key in toImageButtonOptions) {
                 opts[key] = toImageButtonOptions[key];

src/lib/index.js

@@ -755,10 +755,6 @@ lib.containsAny = function(s, fragments) {
     return false;
 };
 
-lib.isIE = function() {
-    return typeof window.navigator.msSaveBlob !== 'undefined';
-};
-
 var IS_SAFARI_REGEX = /Version\/[\d\.]+.*Safari/;
 lib.isSafari = function() {
     return IS_SAFARI_REGEX.test(window.navigator.userAgent);

src/lib/supports_pixelated_image.js

@@ -19,7 +19,7 @@ function supportsPixelatedImage() {
     _supportsPixelated = false;
 
     // @see https://github.com/plotly/plotly.js/issues/6604
-    var unsupportedBrowser = Lib.isIE() || Lib.isSafari() || Lib.isIOS();
+    var unsupportedBrowser = Lib.isSafari() || Lib.isIOS();
 
     if(window.navigator.userAgent && !unsupportedBrowser) {
         var declarations = Array.from(constants.CSS_DECLARATIONS).reverse();

src/snapshot/download.js

@@ -32,15 +32,6 @@ function downloadImage(gd, opts) {
             reject(new Error('Snapshotting already in progress.'));
         }
 
-        // see comments within svgtoimg for additional
-        //   discussion of problems with IE
-        //   can now draw to canvas, but CORS tainted canvas
-        //   does not allow toDataURL
-        //   svg format will work though
-        if(Lib.isIE() && opts.format !== 'svg') {
-            reject(new Error(helpers.MSG_IE_BAD_FORMAT));
-        }
-
         if(_gd) _gd._snapshotInProgress = true;
         var promise = toImage(gd, opts);
 

src/snapshot/filesaver.js

@@ -23,16 +23,6 @@ function fileSaver(url, name, format) {
         var blob;
         var objectUrl;
 
-        // IE 10+ (native saveAs)
-        if(Lib.isIE()) {
-            // At this point we are only dealing with a decoded SVG as
-            // a data URL (since IE only supports SVG)
-            blob = helpers.createBlob(url, 'svg');
-            window.navigator.msSaveBlob(blob, name);
-            blob = null;
-            return resolve(name);
-        }
-
         if(canUseSaveLink) {
             blob = helpers.createBlob(url, format);
             objectUrl = helpers.createObjectURL(blob);

src/snapshot/svgtoimg.js

@@ -13,19 +13,6 @@ function svgToImg(opts) {
         var svg = opts.svg;
         var format = opts.format || 'png';
 
-        // IE only support svg
-        if(Lib.isIE() && format !== 'svg') {
-            var ieSvgError = new Error(helpers.MSG_IE_BAD_FORMAT);
-            reject(ieSvgError);
-            // eventually remove the ev
-            //  in favor of promises
-            if(!opts.promise) {
-                return ev.emit('error', ieSvgError);
-            } else {
-                return promise;
-            }
-        }
-
         var canvas = opts.canvas;
         var scale = opts.scale || 1;
         var w0 = opts.width || 300;

src/snapshot/tosvg.js

@@ -161,26 +161,5 @@ module.exports = function toSVG(gd, format, scale) {
     // Fix quotations around font strings and gradient URLs
     s = s.replace(DUMMY_REGEX, '\'');
 
-    // Do we need this process now that IE9 and IE10 are not supported?
-
-    // IE is very strict, so we will need to clean
-    //  svg with the following regex
-    //  yes this is messy, but do not know a better way
-    // Even with this IE will not work due to tainted canvas
-    //  see https://github.com/kangax/fabric.js/issues/1957
-    //      http://stackoverflow.com/questions/18112047/canvas-todataurl-working-in-all-browsers-except-ie10
-    // Leave here just in case the CORS/tainted IE issue gets resolved
-    if(Lib.isIE()) {
-        // replace double quote with single quote
-        s = s.replace(/"/gi, '\'');
-        // url in svg are single quoted
-        //   since we changed double to single
-        //   we'll need to change these to double-quoted
-        s = s.replace(/(\('#)([^']*)('\))/gi, '(\"#$2\")');
-        // font names with spaces will be escaped single-quoted
-        //   we'll need to change these to double-quoted
-        s = s.replace(/(\\')/gi, '\"');
-    }
-
     return s;
 };