Empty lines require a special case for invisibles.

src/app/editor.coffee

@@ -873,12 +873,15 @@ class Editor extends View
     attributePairs.push "#{attributeName}=\"#{value}\"" for attributeName, value of lineAttributes
     line.push("<pre #{attributePairs.join(' ')}>")
 
-    for token in screenLine.tokens
-      updateScopeStack(token.scopes)
-      line.push(token.escapeValue(@activeEditSession.showInvisibles))
+    unless screenLine.text == ''
+      for token in screenLine.tokens
+        updateScopeStack(token.scopes)
+        line.push(token.escapeValue(@activeEditSession.showInvisibles))
 
     if @activeEditSession.showInvisibles
       line.push("<span class='invisible'>¬</span>")
+    else if screenLine.text == ''
+      line.push("&nbsp;")
 
     line.push('</pre>')
     line.join('')

src/app/token.coffee

@@ -41,13 +41,9 @@ class Token
     tabText = new Array(tabLength + 1).join(" ")
 
   escapeValue: (showInvisibles)->
-    return " " if @value == ""
-
-    value = @value
+    @value
       .replace(/&/g, '&')
       .replace(/"/g, '"')
       .replace(/'/g, ''')
       .replace(/</g, '&lt;')
       .replace(/>/g, '&gt;')
-
-    value