diff --git a/libraries/script-engine/src/ScriptEngine.cpp b/libraries/script-engine/src/ScriptEngine.cpp
index 19246dd355..78a0ad2d19 100644
--- a/libraries/script-engine/src/ScriptEngine.cpp
+++ b/libraries/script-engine/src/ScriptEngine.cpp
@@ -914,7 +914,12 @@ void ScriptEngine::include(const QStringList& includeFiles, QScriptValue callbac
     for (QString file : includeFiles) {
         QUrl thisURL;
         if (file.startsWith("/~/")) {
-            thisURL = expandScriptUrl(QUrl::fromLocalFile(file));
+            thisURL = expandScriptUrl(QUrl::fromLocalFile(expandScriptPath(file)));
+            QUrl defaultScriptsLoc = defaultScriptsLocation();
+            if (!defaultScriptsLoc.isParentOf(thisURL)) {
+                qDebug() << "ScriptEngine::include -- skipping" << file << "-- outside of standard libraries";
+                continue;
+            }
         } else {
             thisURL = resolvePath(file);
         }
diff --git a/libraries/script-engine/src/ScriptEngines.cpp b/libraries/script-engine/src/ScriptEngines.cpp
index 80f2216e2b..aed2d15a1a 100644
--- a/libraries/script-engine/src/ScriptEngines.cpp
+++ b/libraries/script-engine/src/ScriptEngines.cpp
@@ -70,6 +70,12 @@ QUrl normalizeScriptURL(const QUrl& rawScriptURL) {
     }
 }
 
+QString expandScriptPath(const QString& rawPath) {
+    QStringList splitPath = rawPath.split("/");
+    QUrl defaultScriptsLoc = defaultScriptsLocation();
+    return defaultScriptsLoc.path() + "/" + splitPath.mid(2).join("/"); // 2 to skip the slashes in /~/
+}
+
 QUrl expandScriptUrl(const QUrl& rawScriptURL) {
     QUrl normalizedScriptURL = normalizeScriptURL(rawScriptURL);
     if (normalizedScriptURL.scheme() == "http" ||
@@ -79,17 +85,25 @@ QUrl expandScriptUrl(const QUrl& rawScriptURL) {
     } else if (normalizedScriptURL.scheme() == "file") {
         if (normalizedScriptURL.path().startsWith("/~/")) {
             QUrl url = normalizedScriptURL;
-            QStringList splitPath = url.path().split("/");
-            QUrl defaultScriptsLoc = defaultScriptsLocation();
-            url.setPath(defaultScriptsLoc.path() + "/" + splitPath.mid(2).join("/")); // 2 to skip the slashes in /~/
+            url.setPath(expandScriptPath(url.path()));
 
             // stop something like Script.include(["/~/../Desktop/naughty.js"]); from working
             QFileInfo fileInfo(url.toLocalFile());
+            #if defined(Q_OS_WIN)
+            url = QUrl::fromLocalFile(fileInfo.canonicalFilePath().toLower());
+            #elif defined(Q_OS_OSX)
+            url = QUrl::fromLocalFile(fileInfo.canonicalFilePath().toLower());
+            #else
             url = QUrl::fromLocalFile(fileInfo.canonicalFilePath());
+            #endif
+
+            QUrl defaultScriptsLoc = defaultScriptsLocation();
             if (!defaultScriptsLoc.isParentOf(url)) {
                 qCWarning(scriptengine) << "Script.include() ignoring file path" << rawScriptURL
-                                        << "-- outside of standard libraries: " << url.path() << defaultScriptsLoc.path();
-                return QUrl("");
+                                        << "-- outside of standard libraries: "
+                                        << url.path()
+                                        << defaultScriptsLoc.path();
+                return rawScriptURL;
             }
             return url;
         }
diff --git a/libraries/script-engine/src/ScriptEngines.h b/libraries/script-engine/src/ScriptEngines.h
index 5de71663e9..0963b21600 100644
--- a/libraries/script-engine/src/ScriptEngines.h
+++ b/libraries/script-engine/src/ScriptEngines.h
@@ -101,6 +101,7 @@ protected:
 };
 
 QUrl normalizeScriptURL(const QUrl& rawScriptURL);
+QString expandScriptPath(const QString& rawPath);
 QUrl expandScriptUrl(const QUrl& rawScriptURL);
 
 #endif // hifi_ScriptEngine_h