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

Author: sbc100

test/browser/test_small_js_flags.js.size

@@ -1 +1 @@
-3936
+4106

test/browser_reporting.js

@@ -1,9 +1,9 @@
 // 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;
 
-var reportingURL = 'http://localhost:8888/';
+var reportingURL = 'http://localhost:8888';
 
 async function reportResultToServer(result) {
   if (reportResultToServer.reported) {

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)

tools/link.py

@@ -800,7 +800,7 @@ def phase_linker_setup(options, linker_args):  # noqa: C901, PLR0912, PLR0915
   def limit_incoming_module_api():
     if options.oformat == OFormat.HTML and options.shell_path == DEFAULT_SHELL_HTML:
       # Out default shell.html file has minimal set of INCOMING_MODULE_JS_API elements that it expects
-      default_setting('INCOMING_MODULE_JS_API', 'canvas,monitorRunDependencies,onAbort,onExit,print,setStatus'.split(','))
+      default_setting('INCOMING_MODULE_JS_API', 'canvas,monitorRunDependencies,onAbort,onExit,print,printErr,setStatus'.split(','))
     else:
       default_setting('INCOMING_MODULE_JS_API', [])