Something like this

native/PluginProcessor.cpp

@@ -265,31 +265,14 @@ void EffectsPluginProcessor::initJavaScriptEngine()
     });
 
     jsContext.registerFunction("__log__", [this](choc::javascript::ArgumentList args) {
-        const auto* kDispatchScript = R"script(
-(function() {
-  console.log(...JSON.parse(%));
-  return true;
-})();
-)script";
-
-        // Forward logs to the editor if it's available; then logs show up in one place.
-        //
-        // If not available, we fall back to std out.
-        if (auto* editor = static_cast<WebViewEditor*>(getActiveEditor())) {
-            auto v = choc::value::createEmptyArray();
-
-            for (size_t i = 0; i < args.numArgs; ++i) {
-                v.addArrayElement(*args[i]);
-            }
+        auto v = choc::value::createEmptyArray();
 
-            auto expr = juce::String(kDispatchScript).replace("%", elem::js::serialize(choc::json::toString(v))).toStdString();
-            editor->getWebViewPtr()->evaluateJavascript(expr);
-        } else {
-            for (size_t i = 0; i < args.numArgs; ++i) {
-                DBG(choc::json::toString(*args[i]));
-            }
+        for (size_t i = 0; i < args.numArgs; ++i) {
+            v.addArrayElement(*args[i]);
         }
 
+        logEmbeddedMessage(choc::json::toString(v));
+
         return choc::value::Value();
     });
 
@@ -320,15 +303,25 @@ void EffectsPluginProcessor::initJavaScriptEngine()
     auto dspEntryFile = getAssetsDirectory().getChildFile("dsp.main.js");
     auto dspEntryFileContents = dspEntryFile.loadFileAsString().toStdString();
 #endif
-    jsContext.evaluate(dspEntryFileContents);
+    try {
+        jsContext.evaluate(dspEntryFileContents);
+    } catch (choc::javascript::Error const& e) {
+        // TODO: Something like this... need to fix the serialization
+        logEmbeddedMessage(std::string(e.what()));
+    }
 
     // Re-hydrate from current state
     const auto* kHydrateScript = R"script(
 (function() {
   if (typeof globalThis.__receiveHydrationData__ !== 'function')
     return false;
 
-  globalThis.__receiveHydrationData__(%);
+  try {
+    globalThis.__receiveHydrationData__(%);
+  } catch (e) {
+    console.error(e.name, e.message);
+  }
+
   return true;
 })();
 )script";
@@ -344,7 +337,12 @@ void EffectsPluginProcessor::dispatchStateChange()
   if (typeof globalThis.__receiveStateChange__ !== 'function')
     return false;
 
-  globalThis.__receiveStateChange__(%);
+  try {
+    globalThis.__receiveStateChange__(%);
+  } catch (e) {
+    console.error(e.name, e.message);
+  }
+
   return true;
 })();
 )script";
@@ -378,7 +376,12 @@ void EffectsPluginProcessor::dispatchError(std::string const& name, std::string
   let e = new Error(%);
   e.name = @;
 
-  globalThis.__receiveError__(e);
+  try {
+    globalThis.__receiveError__(e);
+  } catch (e) {
+    console.error(e.name, e.message);
+  }
+
   return true;
 })();
 )script";
@@ -397,6 +400,23 @@ void EffectsPluginProcessor::dispatchError(std::string const& name, std::string
     jsContext.evaluate(expr);
 }
 
+//==============================================================================
+void EffectsPluginProcessor::logEmbeddedMessage(std::string const& serializedMessage)
+{
+    const auto* kDispatchScript = R"script(
+(function() {
+  console.log(...JSON.parse(%));
+  return true;
+})();
+)script";
+
+    // Forward logs to the editor if it's available; then all logs show up in one place.
+    if (auto* editor = static_cast<WebViewEditor*>(getActiveEditor())) {
+        auto expr = juce::String(kDispatchScript).replace("%", elem::js::serialize(serializedMessage)).toStdString();
+        editor->getWebViewPtr()->evaluateJavascript(expr);
+    }
+}
+
 //==============================================================================
 void EffectsPluginProcessor::getStateInformation (juce::MemoryBlock& destData)
 {

native/PluginProcessor.h

@@ -67,6 +67,9 @@ class EffectsPluginProcessor
     void dispatchError(std::string const& name, std::string const& message);
 
 private:
+    //==============================================================================
+    void logEmbeddedMessage(std::string const& serializedMessage);
+
     //==============================================================================
     std::atomic<bool> shouldInitialize { false };
     double lastKnownSampleRate = 0;