This test sometimes fail with: TEST: /app/webkit/WebKitBuild/WPE/Release/bin/TestWebKitAPI/WPE/TestSSL... GLib-GIO-DEBUG: _g_io_module_get_default: Found default implementation gnutls (GTlsBackendGnutls) for ‘gio-tls-backend’ /webkit/WebKitWebView/ssl: PASS GLib-GIO-DEBUG: Using cross-namespace EXTERNAL authentication (this will deadlock if server is GDBus < 2.73.3) EGLDisplay Initialization failed: EGL_NOT_INITIALIZED /webkit/WebKitWebView/insecure-content: PASS /webkit/WebKitWebView/tls-errors-policy: PASS /webkit/WebKitWebView/tls-errors-redirect-to-http: PASS /webkit/WebKitWebView/tls-http-auth: PASS /webkit/WebKitWebView/tls-subresource: PASS /webkit/WebKitWebView/load-failed-with-tls-errors: PASS /webkit/WebKitWebView/web-socket-tls-errors: PASS libsoup-DEBUG: stopping input source libsoup-DEBUG: closing io stream libsoup-DEBUG: closed: completed io stream close libsoup-DEBUG: stopping input source libsoup-DEBUG: closing io stream libsoup-DEBUG: closed: completed io stream close /webkit/WebKitWebView/ephemeral-tls-errors: PASS /webkit/WebKitWebView/client-side-certificate: FAIL ERROR:/app/webkit/Tools/TestWebKitAPI/Tests/WebKitGLib/TestSSL.cpp:743:void testClientSideCertificate(ClientSideCertificateTest*, gconstpointer): assertion failed (test->m_error.get() == (g-tls-error-quark, 5)): Connection terminated unexpectedly (g-io-error-quark, 34) GLib-GIO-DEBUG: _g_io_module_get_default: Found default implementation gnutls (GTlsBackendGnutls) for ‘gio-tls-backend’ /webkit/WebKitWebView/web-socket-client-side-certificate: PASS GLib-GIO-DEBUG: Using cross-namespace EXTERNAL authentication (this will deadlock if server is GDBus < 2.73.3) libsoup-DEBUG: stopping input source libsoup-DEBUG: closing io stream libsoup-DEBUG: closed: completed io stream close EGLDisplay Initialization failed: EGL_NOT_INITIALIZED See: https://ews-build.webkit.org/#/builders/41/builds/2342/steps/15/logs/stdio It happens randomly on the EWS queue mainly at: https://ews-build.webkit.org/#/builders/API-Tests-WPE-EWS