Index: build/tcl/chrome-emu.js
==================================================================
--- build/tcl/chrome-emu.js
+++ build/tcl/chrome-emu.js
@@ -11,10 +11,12 @@
 			outArray.push(arg);
 		} else if (typeof(arg) === 'undefined') {
 			outArray.push("<undefined>");
 		} else if (arg === null) {
 			outArray.push("<null>");
+		} else if (arg instanceof Error) {
+			outArray.push(arg.stack);
 		} else {
 			outArray.push(JSON.stringify(arg));
 		}
 	}
 	return(outArray.join(' '));