diff --git a/widgets/CMakeLists.txt b/widgets/CMakeLists.txt
index 535d035..c15339b 100644
--- a/widgets/CMakeLists.txt
+++ b/widgets/CMakeLists.txt
@@ -90,16 +90,27 @@ use_syncthingconnector()
 find_package(syncthingmodel ${META_APP_VERSION} REQUIRED)
 use_syncthingmodel()
 
+# configure libsyncthing
 option(USE_LIBSYNCTHING "whether libsyncthing should be included for the launcher" OFF)
 if(USE_LIBSYNCTHING)
     find_package(syncthing ${META_APP_VERSION} REQUIRED)
     use_syncthing()
     set_source_files_properties(
         misc/syncthinglauncher.cpp
-        PROPERTIES COMPILE_DEFINITIONS SYNCTHING_WIDGETS_USE_LIBSYNCTHING
+        PROPERTIES COMPILE_DEFINITIONS SYNCTHINGWIDGETS_USE_LIBSYNCTHING
     )
 endif()
 
+# configure logging JavaScript events to stderr
+option(SYNCTHING_WIDGETS_LOG_JAVASCRIPT_CONSOLE "enables logging JavaScript events of webview to stderr" OFF)
+if(SYNCTHING_WIDGETS_LOG_JAVASCRIPT_CONSOLE)
+    set_property(
+        SOURCE webview/webpage.cpp
+        APPEND PROPERTY COMPILE_DEFINITIONS SYNCTHINGWIDGETS_LOG_JAVASCRIPT_CONSOLE
+    )
+    message(WARNING "JavaScript console of web view will be logged to stderr")
+endif()
+
 # link also explicitely against the following Qt 5 modules
 list(APPEND ADDITIONAL_QT_MODULES Network Concurrent)
 
diff --git a/widgets/misc/syncthinglauncher.cpp b/widgets/misc/syncthinglauncher.cpp
index 8f49f21..3917976 100644
--- a/widgets/misc/syncthinglauncher.cpp
+++ b/widgets/misc/syncthinglauncher.cpp
@@ -25,7 +25,7 @@ SyncthingLauncher::SyncthingLauncher(QObject *parent)
 
 bool SyncthingLauncher::isLibSyncthingAvailable()
 {
-#ifdef SYNCTHING_WIDGETS_USE_LIBSYNCTHING
+#ifdef SYNCTHINGWIDGETS_USE_LIBSYNCTHING
     return true;
 #else
     return false;
@@ -76,7 +76,7 @@ void SyncthingLauncher::terminate()
         m_process.stopSyncthing();
     } else if (m_future.isRunning()) {
         m_manuallyStopped = true;
-#ifdef SYNCTHING_WIDGETS_USE_LIBSYNCTHING
+#ifdef SYNCTHINGWIDGETS_USE_LIBSYNCTHING
         LibSyncthing::stopSyncthing();
 #endif
     }
@@ -89,7 +89,7 @@ void SyncthingLauncher::kill()
         m_process.stopSyncthing();
     } else if (m_future.isRunning()) {
         m_manuallyStopped = true;
-#ifdef SYNCTHING_WIDGETS_USE_LIBSYNCTHING
+#ifdef SYNCTHINGWIDGETS_USE_LIBSYNCTHING
         // FIXME: any change to try harder?
         LibSyncthing::stopSyncthing();
 #endif
@@ -117,7 +117,7 @@ static const char *const logLevelStrings[] = {
 
 void SyncthingLauncher::handleLoggingCallback(LibSyncthing::LogLevel level, const char *message, size_t messageSize)
 {
-#ifdef SYNCTHING_WIDGETS_USE_LIBSYNCTHING
+#ifdef SYNCTHINGWIDGETS_USE_LIBSYNCTHING
     if (level < LibSyncthing::LogLevel::Info) {
         return;
     }
@@ -138,7 +138,7 @@ void SyncthingLauncher::handleLoggingCallback(LibSyncthing::LogLevel level, cons
 
 void SyncthingLauncher::runLibSyncthing(const LibSyncthing::RuntimeOptions &runtimeOptions)
 {
-#ifdef SYNCTHING_WIDGETS_USE_LIBSYNCTHING
+#ifdef SYNCTHINGWIDGETS_USE_LIBSYNCTHING
     LibSyncthing::setLoggingCallback(bind(&SyncthingLauncher::handleLoggingCallback, this, _1, _2, _3));
     const auto exitCode = LibSyncthing::runSyncthing(runtimeOptions);
     emit exited(static_cast<int>(exitCode), exitCode == 0 ? QProcess::NormalExit : QProcess::CrashExit);
@@ -151,7 +151,7 @@ void SyncthingLauncher::runLibSyncthing(const LibSyncthing::RuntimeOptions &runt
 
 void SyncthingLauncher::runLibSyncthing(const std::vector<string> &arguments)
 {
-#ifdef SYNCTHING_WIDGETS_USE_LIBSYNCTHING
+#ifdef SYNCTHINGWIDGETS_USE_LIBSYNCTHING
     LibSyncthing::setLoggingCallback(bind(&SyncthingLauncher::handleLoggingCallback, this, _1, _2, _3));
     const auto exitCode = LibSyncthing::runSyncthing(arguments);
     emit exited(static_cast<int>(exitCode), exitCode == 0 ? QProcess::NormalExit : QProcess::CrashExit);
diff --git a/widgets/webview/webpage.cpp b/widgets/webview/webpage.cpp
index ab4ee54..f5756df 100644
--- a/widgets/webview/webpage.cpp
+++ b/widgets/webview/webpage.cpp
@@ -26,6 +26,10 @@
 #include <QWebView>
 #endif
 
+#ifdef SYNCTHINGWIDGETS_LOG_JAVASCRIPT_CONSOLE
+#include <iostream>
+#endif
+
 using namespace Data;
 
 namespace QtGui {
@@ -260,6 +264,9 @@ void WebPage::injectJavaScripts(bool ok)
  */
 void WebPage::processJavaScriptConsoleMessage(const QString &message)
 {
+#ifdef SYNCTHINGWIDGETS_LOG_JAVASCRIPT_CONSOLE
+    std::cerr << "JS console: " << message.toLocal8Bit().data() << std::endl;
+#endif
     if (message.startsWith(QLatin1String("nativeInterface.showFolderPathSelection: "))) {
         showFolderPathSelection(message.mid(41));
     }