qmltests::DesktopWebEngineViewLinkHovered::test_linkHovered() fails in the CI

 ********* Start testing of qmltests *********
 Config: Using QtTest library 5.8.0, Qt 5.8.0 (x86_64-little_endian-lp64 shared (dynamic) debug build; by GCC 4.8.2)
 QWARN  : qmltests::UnknownTestFunc() 
 WARNING: This project is using the testsupport QML API extensions for QtWebEngine and is therefore tied to a specific QtWebEngine release.
 WARNING: The testsupport API will change from version to version, or even be removed. You have been warned!
 
 PASS   : qmltests::DesktopWebEngineViewLinkHovered::initTestCase()
 [3808:3808:1228/084226:WARNING:message_queue.cc(38)] Leaking 1 ports in unreceived messages
 [3808:3808:1228/084226:WARNING:message_queue.cc(38)] Leaking 2 ports in unreceived messages
 [3808:3808:1228/084226:WARNING:message_queue.cc(38)] Leaking 1 ports in unreceived messages
 [3808:3808:1228/084226:WARNING:message_queue.cc(38)] Leaking 1 ports in unreceived messages
 [3808:3808:1228/084226:WARNING:message_queue.cc(38)] Leaking 2 ports in unreceived messages
 [3808:3808:1228/084226:WARNING:message_queue.cc(38)] Leaking 1 ports in unreceived messages
 FAIL!  : qmltests::DesktopWebEngineViewLinkHovered::test_linkHovered() 'wait for signal linkHovered' returned FALSE. ()
    Loc: [/home/qt/work/qt/qtwebengine/tests/auto/quick/qmltests/data/tst_linkHovered.qml(99)]
 PASS   : qmltests::DesktopWebEngineViewLinkHovered::cleanupTestCase()
 Totals: 2 passed, 1 failed, 0 skipped, 0 blacklisted, 6123ms
 ********* Finished testing of qmltests *********