diff --git a/browser/components/CodeEditor.js b/browser/components/CodeEditor.js
index cda37836..217a14b1 100644
--- a/browser/components/CodeEditor.js
+++ b/browser/components/CodeEditor.js
@@ -51,6 +51,7 @@ export default class CodeEditor extends React.Component {
 
   componentDidMount () {
     this.value = this.props.value
+
     this.editor = CodeMirror(this.refs.root, {
       value: this.props.value,
       lineNumbers: this.props.displayLineNumbers,
@@ -71,7 +72,7 @@ export default class CodeEditor extends React.Component {
           if (cm.somethingSelected()) cm.indentSelection('add')
           else {
             const tabs = cm.getOption('indentWithTabs')
-            if (line.trimLeft().match(/^(-|\*|\+) (\[( |x)\] )?$/)) {
+            if (line.trimLeft().match(/^(-|\*|\+) (\[( |x)] )?$/)) {
               cm.execCommand('goLineStart')
               if (tabs) {
                 cm.execCommand('insertTab')
@@ -234,7 +235,7 @@ export default class CodeEditor extends React.Component {
     if (!dataTransferItem.type.match('image')) return
 
     const blob = dataTransferItem.getAsFile()
-    const reader = new FileReader()
+    const reader = new window.FileReader()
     let base64data
 
     reader.readAsDataURL(blob)
diff --git a/browser/components/MarkdownSplitEditor.js b/browser/components/MarkdownSplitEditor.js
index d0a3eb27..2cf8e322 100644
--- a/browser/components/MarkdownSplitEditor.js
+++ b/browser/components/MarkdownSplitEditor.js
@@ -62,6 +62,7 @@ class MarkdownSplitEditor extends React.Component {
           keyMap={config.editor.keyMap}
           fontFamily={config.editor.fontFamily}
           fontSize={editorFontSize}
+          displayLineNumbers={config.editor.displayLineNumbers}
           indentType={config.editor.indentType}
           indentSize={editorIndentSize}
           scrollPastEnd={config.editor.scrollPastEnd}