Tooltips leave ghost outline in IE9 quirks mode

[derekho]

Mousing over multiple tooltips in IE9 quirks mode leaves ghost outlines of the previous tooltips.

http://jsfiddle.net/gh/get/jquery/1.7.2/highslide-software/highcharts.com/tree/master/samples/highcharts/demo/bar-stacked/

Note: you have to login, run the code, then use the draft mode to view the chart in IE9 quirks mode on jsfiddle.

[TorsteinHonsi]

Another demo: http://jsfiddle.net/highcharts/hELPn/1/ and http://jsfiddle.net/highcharts/hELPn/1/show .

For the records, this problem applies in IE8 as well, but only when the doctype is transitional. With strict doctypes, it does not appear. So it is independent of whether IE8 runs in standards or compat mode, but dependent of the doctype of the page.

Adding a screenshot from IE9 Compatibility mode and Quirks mode:

[TorsteinHonsi]

Workaround

The easiest and most reliable workaround is perhaps to use full HTML and CSS for the tooltip so that we fully avoid the VML rendering issues in IE.

See http://jsfiddle.net/highcharts/gbM2C/.

[cvasseng]

Hi! We're doing a bit of spring cleaning, and closing old issues. If you're still experiencing issues with this, please feel free to open a new issue! Thanks!