Hello Sebastien, I just noticed you are using <input> tag as follows: <input type="text" title="This is a sample tooltip"></input> [1] Maybe this need to be changed to <input type="text" title="This is a sample tooltip"/> IE complains for invalid close tag, and library size will be smaller :))
[1] https://github.com/sebfz1/wicket-jquery-ui/blob/wicket8.x/wicket-jquery-ui-samples/src/main/java/com/googlecode/wicket/jquery/ui/samples/jqueryui/tooltip/DefaultTooltipPage.html#L13 -- WBR Maxim aka solomax
