FAQ #10478, published on 2016-02-19
How to make the HTML Control emulate IE11 ?
The default setting of the HTML control is to be compatible with IE7. This might prove bothersome if your HTML code is relying on features not available in IE7.

There is a way to change the compatibility mode for IE11 and it's done by changing  a registry value. This is the purpose of this code (you simply have to add this code in the project init code) :

sExeName         is string
nIEversion         is int

// get the EXE name
sExeName=fExtractPath( ExeInfo(exeName),fFileName+fExtension)

// read current IE compatibility setting
nIEversion=RegistryQueryValue("HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION",sExeName)

// changing setting if needed
IF NOT nIEversion IN (10001,11001)  THEN
    // neither IE10 or IE11
    // force IE11
    nIEversion=11001   //10001 for  IE10, 11001 for  IE11
    IF NOT RegistrySetValue("HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION",sExeName,nIEversion) THEN
        Error("Impossible de forcer la version de Internet Explorer",ErrorInfo())

See also : HTML, control, IE11, IE10, IE7