[test] Enable stdout/stderr logging by default in browser tests

Author: sbc100

test/browser_reporting.js

@@ -1,5 +1,5 @@
 // Set this to true to have stdout and stderr sent back to the server
-var captureStdoutStderr = false;
+var captureStdoutStderr = true;
 
 var hasModule = typeof Module === 'object' && Module;
 

test/common.py

@@ -2127,7 +2127,9 @@ def do_POST(self):
         self.send_response(200)
         self.end_headers()
       else:
-        print(f'do_POST: unexpected POST: {urlinfo.query}')
+        print(f'do_POST: unexpected POST: {self.path} {urlinfo}')
+        self.send_response(404)
+        self.end_headers()
 
     def do_GET(self):
       info = urlparse(self.path)