Spellchecking example does not work

1.Build and run examples/webenginewidgets/spellchecker
2. enter the word "lovey" into any text field and press the space key a couple of times.
Expected result: The word is squiggly underlined, right click brings up option to correct to "love"
Actual result: No squiggly lines. The context menu offers an option to enable spellcheck, but clicking it does not do anything.