vendor/assets/javascripts/codemirror/addons/runmode/runmode.node.js in codemirror-rails-3.24 vs vendor/assets/javascripts/codemirror/addons/runmode/runmode.node.js in codemirror-rails-4.0

@@ -1,7 +1,9 @@
 /* Just enough of CodeMirror to run runMode under node.js */
 
+// declare global: StringStream
+
 function splitLines(string){ return string.split(/\r?\n|\r/); };
 
 function StringStream(string) {
   this.pos = this.start = 0;
   this.string = string;
@@ -110,5 +112,7 @@
       callback(stream.current(), style, i, stream.start, state);
       stream.start = stream.pos;
     }
   }
 };
+
+require.cache[require.resolve("../../lib/codemirror")] = require.cache[require.resolve("./runmode.node")];