diff --git a/src/bootstrap.js b/src/bootstrap.js
index 788d45202..1042ceb6a 100644
--- a/src/bootstrap.js
+++ b/src/bootstrap.js
@@ -73,7 +73,8 @@ phantom.__defineErrorSignalHandler__ = function(obj, page, handlers) {
             return (!!handlerObj && typeof handlerObj.callback === "function" && typeof handlerObj.connector === "function") ?
                 handlers[handlerName].callback :
                 undefined;
-        }
+        },
+        configurable: true
     });
 };
 
diff --git a/src/config.cpp b/src/config.cpp
index a81be2f36..661d6c8c9 100644
--- a/src/config.cpp
+++ b/src/config.cpp
@@ -177,7 +177,7 @@ void Config::loadJsonFile(const QString& filePath)
     // Add this object to the global scope
     webPage.mainFrame()->addToJavaScriptWindowObject("config", this);
     // Apply the JSON config settings to this very object
-    webPage.mainFrame()->evaluateJavaScript(configurator.arg(jsonConfig), QString());
+    webPage.mainFrame()->evaluateJavaScript(configurator.arg(jsonConfig));
 }
 
 QString Config::helpText() const
diff --git a/src/modules/webpage.js b/src/modules/webpage.js
index 20eae9a85..0760a74b4 100644
--- a/src/modules/webpage.js
+++ b/src/modules/webpage.js
@@ -115,7 +115,8 @@ function definePageSignalHandler(page, handlers, handlerName, signalName) {
             return !!handlers[handlerName] && typeof handlers[handlerName].callback === "function" ?
                 handlers[handlerName].callback :
                 undefined;
-        }
+        },
+        configurable: true
     });
 }
 
diff --git a/src/phantom.cpp b/src/phantom.cpp
index 5417b9beb..9565a89ea 100644
--- a/src/phantom.cpp
+++ b/src/phantom.cpp
@@ -386,7 +386,7 @@ void Phantom::loadModule(const QString& moduleSource, const QString& filename)
         "require.cache['" + filename + "'].exports," +
         "require.cache['" + filename + "']" +
         "));";
-    m_page->mainFrame()->evaluateJavaScript(scriptSource, QString(JAVASCRIPT_SOURCE_PLATFORM_URL).arg(QFileInfo(filename).fileName()));
+    m_page->mainFrame()->evaluateJavaScript(scriptSource);
 }
 
 bool Phantom::injectJs(const QString& jsFilePath)
@@ -483,8 +483,7 @@ void Phantom::onInitialized()
 
     // Bootstrap the PhantomJS scope
     m_page->mainFrame()->evaluateJavaScript(
-        Utils::readResourceFileUtf8(":/bootstrap.js"),
-        QString(JAVASCRIPT_SOURCE_PLATFORM_URL).arg("bootstrap.js")
+        Utils::readResourceFileUtf8(":/bootstrap.js")
     );
 }
 
diff --git a/src/repl.cpp b/src/repl.cpp
index 45a475bc1..7f25a22b0 100644
--- a/src/repl.cpp
+++ b/src/repl.cpp
@@ -147,7 +147,7 @@ REPL::REPL(QWebFrame* webframe, Phantom* parent)
     linenoiseSetCompletionCallback(REPL::offerCompletion);
 
     // Inject REPL utility functions
-    m_webframe->evaluateJavaScript(Utils::readResourceFileUtf8(":/repl.js"), QString(JAVASCRIPT_SOURCE_PLATFORM_URL).arg("repl.js"));
+    m_webframe->evaluateJavaScript(Utils::readResourceFileUtf8(":/repl.js"));
 
     // Add self to JavaScript world
     m_webframe->addToJavaScriptWindowObject("_repl", this);
@@ -184,8 +184,7 @@ void REPL::offerCompletion(const char* buf, linenoiseCompletions* lc)
     QStringList completions = REPL::getInstance()->m_webframe->evaluateJavaScript(
                                   QString(JS_RETURN_POSSIBLE_COMPLETIONS).arg(
                                       toInspect,
-                                      toComplete),
-                                  QString()
+                                      toComplete)
                               ).toStringList();
 
     foreach(QString c, completions) {
@@ -210,7 +209,7 @@ void REPL::startLoop()
             // Send the user input to the main Phantom frame for evaluation
             m_webframe->evaluateJavaScript(
                 QString(JS_EVAL_USER_INPUT).arg(
-                    QString(userInput).replace('"', "\\\"")), QString("phantomjs://repl-input"));
+                    QString(userInput).replace('"', "\\\"")));
 
             // Save command in the REPL history
             linenoiseHistoryAdd(userInput);
diff --git a/src/utils.cpp b/src/utils.cpp
index 16d933ef9..9970e1cc0 100644
--- a/src/utils.cpp
+++ b/src/utils.cpp
@@ -132,7 +132,7 @@ bool injectJsInFrame(const QString& jsFilePath, const QString& jsFileLanguage, c
         return false;
     }
     // Execute JS code in the context of the document
-    targetFrame->evaluateJavaScript(scriptBody, QString(JAVASCRIPT_SOURCE_CODE_URL).arg(QFileInfo(scriptPath).fileName()));
+    targetFrame->evaluateJavaScript(scriptBody);
     return true;
 }
 
@@ -147,10 +147,10 @@ bool loadJSForDebug(const QString& jsFilePath, const QString& jsFileLanguage, co
     QString scriptBody = jsFromScriptFile(scriptPath, jsFileLanguage, jsFileEnc);
 
     scriptBody = QString("function __run() {\n%1\n}").arg(scriptBody);
-    targetFrame->evaluateJavaScript(scriptBody, QString(JAVASCRIPT_SOURCE_CODE_URL).arg(QFileInfo(scriptPath).fileName()));
+    targetFrame->evaluateJavaScript(scriptBody);
 
     if (autorun) {
-        targetFrame->evaluateJavaScript("__run()", QString());
+        targetFrame->evaluateJavaScript("__run()");
     }
 
     return true;
diff --git a/src/webpage.cpp b/src/webpage.cpp
index f69b53040..897f6dd02 100644
--- a/src/webpage.cpp
+++ b/src/webpage.cpp
@@ -769,8 +769,7 @@ QVariant WebPage::evaluateJavaScript(const QString& code)
     qDebug() << "WebPage - evaluateJavaScript" << function;
 
     evalResult = m_currentFrame->evaluateJavaScript(
-                     function,                                   //< function evaluated
-                     QString("phantomjs://webpage.evaluate()")); //< reference source file
+                     function);
 
     qDebug() << "WebPage - evaluateJavaScript result" << evalResult;
 
@@ -942,7 +941,7 @@ void WebPage::openUrl(const QString& address, const QVariant& op, const QVariant
     }
 
     if (networkOp == QNetworkAccessManager::UnknownOperation) {
-        m_mainFrame->evaluateJavaScript("console.error('Unknown network operation: " + operation + "');", QString());
+        m_mainFrame->evaluateJavaScript("console.error('Unknown network operation: " + operation + "');");
         return;
     }
 
@@ -1350,7 +1349,7 @@ QString getHeaderFooter(const QVariantMap& map, const QString& key, QWebFrame* f
             }
         }
     }
-    frame->evaluateJavaScript("console.error('Bad header callback given, use phantom.callback);", QString());
+    frame->evaluateJavaScript("console.error('Bad header callback given, use phantom.callback);");
     return QString();
 }
 
@@ -1389,7 +1388,7 @@ bool WebPage::injectJs(const QString& jsFilePath)
 
 void WebPage::_appendScriptElement(const QString& scriptUrl)
 {
-    m_currentFrame->evaluateJavaScript(QString(JS_APPEND_SCRIPT_ELEMENT).arg(scriptUrl), scriptUrl);
+    m_currentFrame->evaluateJavaScript(QString(JS_APPEND_SCRIPT_ELEMENT).arg(scriptUrl));
 }
 
 QObject* WebPage::_getGenericCallback()
diff --git a/src/webpage.h b/src/webpage.h
index 55920e718..4a3e67efd 100644
--- a/src/webpage.h
+++ b/src/webpage.h
@@ -46,7 +46,7 @@ class NetworkAccessManager;
 class QWebInspector;
 class Phantom;
 
-class WebPage : public QObject, public QWebFrame::PrintCallback
+class WebPage : public QObject
 {
     Q_OBJECT
     Q_PROPERTY(QString title READ title)