This is a testharness.js-based test.
[FAIL] SPC authentication not allowed without a user activation
  promise_test: Unhandled rejection with value: "error: Action add_virtual_authenticator failed: invalid argument (400): invalid argument: Chrome only supports one internal authenticator per environment\\n  (Session info: chrome=141.0.7354.0)\\n\\nRemote-end stacktrace:\\n\\n\\tbase::debug::CollectStackTrace [0x0x7ff62be19bdc+32] (o:\\\\base\\\\debug\\\\stack_trace_win.cc:326)\\n\\tbase::debug::StackTrace::StackTrace [0x0x7ff62be145e8+80] (o:\\\\base\\\\debug\\\\stack_trace.cc:250)\\n\\tStatus::Status [0x0x7ff62b80189c+224] (o:\\\\chrome\\\\test\\\\chromedriver\\\\chrome\\\\status.cc:97)\\n\\tinternal::ParseInspectorError [0x0x7ff62b7ef994+1456] (o:\\\\chrome\\\\test\\\\chromedriver\\\\chrome\\\\devtools_client_impl.cc:1520)\\n\\tDevToolsClientImpl::SendCommandInternal [0x0x7ff62b7ee23c+4052] (o:\\\\chrome\\\\test\\\\chromedriver\\\\chrome\\\\devtools_client_impl.cc:970)\\n\\tDevToolsClientImpl::SendCommandAndGetResultWithTimeout [0x0x7ff62b7ee584+148] (o:\\\\chrome\\\\test\\\\chromedriver\\\\chrome\\\\devtools_client_impl.cc:685)\\n\\tWebViewImpl::SendCommandAndGetResult [0x0x7ff62b806250+144] (o:\\\\chrome\\\\test\\\\chromedriver\\\\chrome\\\\web_view_impl.cc:864)\\n\\tExecuteAddVirtualAuthenticator [0x0x7ff62b88282c+1852] (o:\\\\chrome\\\\test\\\\chromedriver\\\\webauthn_commands.cc:163)\\n\\tbase::RepeatingCallback<Status (Session *, const base::DictValue &, std::__Cr::unique_ptr<base::Value,std::__Cr::default_delete<base::Value> > *)>::Run [0x0x7ff62b83c3a8+140] (o:\\\\base\\\\functional\\\\callback.h:345)\\n\\tExecuteWebAuthnCommand [0x0x7ff62b882078+600] (o:\\\\chrome\\\\test\\\\chromedriver\\\\webauthn_commands.cc:103)\\n\\tbase::RepeatingCallback<Status (Session *, const base::DictValue &, std::__Cr::unique_ptr<base::Value,std::__Cr::default_delete<base::Value> > *)>::Run [0x0x7ff62b83c3a8+140] (o:\\\\base\\\\functional\\\\callback.h:345)\\n\\t`anonymous namespace'::ExecuteSessionCommandOnSessionThread [0x0x7ff62b83b558+856] (o:\\\\chrome\\\\test\\\\chromedriver\\\\commands.cc:308)\\n\\tbase::internal::Invoker<base::internal::FunctorTraits<void (*&&)(const char *, const std::__Cr::basic_string<char,std::__Cr::char_traits<char>,std::__Cr::allocator<char> > &, const base::RepeatingCallback<Status (Session *, const base::DictValue &, std::_ [0x0x7ff62b83c138+104] (o:\\\\base\\\\functional\\\\bind_internal.h:973)\\n\\tbase::TaskAnnotator::RunTaskImpl [0x0x7ff62bdb8558+368] (o:\\\\base\\\\task\\\\common\\\\task_annotator.cc:207)\\n\\tbase::sequence_manager::internal::ThreadControllerWithMessagePumpImpl::DoWorkImpl [0x0x7ff62bddce10+916] (o:\\\\base\\\\task\\\\sequence_manager\\\\thread_controller_with_message_pump_impl.cc:473)\\n\\tbase::sequence_manager::internal::ThreadControllerWithMessagePumpImpl::DoWork [0x0x7ff62bddc900+144] (o:\\\\base\\\\task\\\\sequence_manager\\\\thread_controller_with_message_pump_impl.cc:352)\\n\\tbase::MessagePumpDefault::Run [0x0x7ff62bdbb860+160] (o:\\\\base\\\\message_loop\\\\message_pump_default.cc:44)\\n\\tbase::sequence_manager::internal::ThreadControllerWithMessagePumpImpl::Run [0x0x7ff62bddd6c4+372] (o:\\\\base\\\\task\\\\sequence_manager\\\\thread_controller_with_message_pump_impl.cc:651)\\n\\tbase::RunLoop::Run [0x0x7ff62bda7fc8+496] (o:\\\\base\\\\run_loop.cc:136)\\n\\tbase::Thread::Run [0x0x7ff62be02f58+72] (o:\\\\base\\\\threading\\\\thread.cc:361)\\n\\tbase::Thread::ThreadMain [0x0x7ff62be03160+464] (o:\\\\base\\\\threading\\\\thread.cc:439)\\n\\tbase::`anonymous namespace'::ThreadFunc [0x0x7ff62be2b2b4+372] (o:\\\\base\\\\threading\\\\platform_thread_win.cc:116)\\n\\tBaseThreadInitThunk [0x0x7ffd6e1822d0+48]\\n\\tRtlUserThreadStart [0x0x7ffd71e75b9c+60]"
Harness: the test ran to completion.