rc.2

Dispatch event instead of using a.click()
closes #465

added a changelog
closes #466

Made third argument as a object instead for easier transition to v2

src/FileSaver.js

@@ -24,22 +24,27 @@ var _global = (function () {
   }
 })()
 
-function bom (blob, autoBom) {
-  if (!autoBom) return blob
+function bom (blob, opts) {
+  if (typeof opts === 'undefined') opts = { autoBom: false }
+  else if (typeof opts !== 'object') {
+    console.warn('Depricated: Expected third argument to be a object')
+    opts = { autoBom: !opts }
+  }
+
   // prepend BOM for UTF-8 XML and text/* types (including HTML)
   // note: your browser will automatically convert UTF-16 U+FEFF to EF BB BF
-  if (/^\s*(?:text\/\S*|application\/xml|\S*\/\S*\+xml)\s*;.*charset\s*=\s*utf-8/i.test(blob.type)) {
+  if (opts.autoBom && /^\s*(?:text\/\S*|application\/xml|\S*\/\S*\+xml)\s*;.*charset\s*=\s*utf-8/i.test(blob.type)) {
     return new Blob([String.fromCharCode(0xFEFF), blob], { type: blob.type })
   }
   return blob
 }
 
-function download (url, name, autoBom) {
+function download (url, name, opts) {
   var xhr = new XMLHttpRequest()
   xhr.open('GET', url)
   xhr.responseType = 'blob'
   xhr.onload = function () {
-    saveAs(xhr.response, name, autoBom)
+    saveAs(xhr.response, name, opts)
   }
   xhr.onerror = function () {
     console.error('could not download file')
@@ -55,6 +60,18 @@ function corsEnabled (url) {
   return xhr.status >= 200 && xhr.status <= 299
 }
 
+// `a.click()` don't work for all browsers (#465)
+function click(node) {
+  try {
+    node.dispatchEvent(new MouseEvent('click'))
+  } catch (e) {
+    var evt = document.createEvent('MouseEvents')
+    evt.initMouseEvent('click', true, true, window, 0, 0, 0, 80,
+                          20, false, false, false, false, 0, null)
+    node.dispatchEvent(evt)
+  }
+}
+
 var saveAs = _global.saveAs ||
 // probably in some web worker
 (typeof window !== 'object' || window !== _global)
@@ -62,7 +79,7 @@ var saveAs = _global.saveAs ||
 
 // Use download attribute first if possible (#193 Lumia mobile)
 : 'download' in HTMLAnchorElement.prototype
-? function saveAs (blob, name, autoBom) {
+? function saveAs (blob, name, opts) {
   var URL = _global.URL || _global.webkitURL
   var a = document.createElement('a')
   name = name || blob.name || 'download'
@@ -78,40 +95,40 @@ var saveAs = _global.saveAs ||
     a.href = blob
     if (a.origin !== location.origin) {
       corsEnabled(a.href)
-        ? download(blob, name, autoBom)
-        : a.click(a.target = '_blank')
+        ? download(blob, name, opts)
+        : click(a, a.target = '_blank')
     } else {
-      a.click()
+      click(a)
     }
   } else {
     // Support blobs
     a.href = URL.createObjectURL(blob)
     setTimeout(function () { URL.revokeObjectURL(a.href) }, 4E4) // 40s
-    setTimeout(a.click.bind(a), 0)
+    setTimeout(function () { click(a) }, 0)
   }
 }
 
 // Use msSaveOrOpenBlob as a second approch
 : 'msSaveOrOpenBlob' in navigator
-? function saveAs (blob, name, autoBom) {
+? function saveAs (blob, name, opts) {
   name = name || blob.name || 'download'
 
   if (typeof blob === 'string') {
     if (corsEnabled(blob)) {
-      download(blob, name, autoBom)
+      download(blob, name, opts)
     } else {
       var a = document.createElement('a')
       a.href = blob
       a.target = '_blank'
-      setTimeout(a.click.bind(a))
+      setTimeout(function () { clikc(a) })
     }
   } else {
-    navigator.msSaveOrOpenBlob(bom(blob, autoBom), name)
+    navigator.msSaveOrOpenBlob(bom(blob, opts), name)
   }
 }
 
 // Fallback to using FileReader and a popup
-: function saveAs (blob, name, autoBom, popup) {
+: function saveAs (blob, name, opts, popup) {
   // Open a popup immediately do go around popup blocker
   // Mostly only avalible on user interaction and the fileReader is async so...
   popup = popup || open('', '_blank')
@@ -120,7 +137,7 @@ var saveAs = _global.saveAs ||
     popup.document.body.innerText = 'downloading...'
   }
 
-  if (typeof blob === 'string') return download(blob, name, autoBom)
+  if (typeof blob === 'string') return download(blob, name, opts)
 
   var force = blob.type === 'application/octet-stream'
   var isSafari = /constructor/i.test(_global.HTMLElement) || _global.safari