If the alwaysAddDefaults property is set to true (the default), the ParameterValidator component adds predefined default string values to the lists of illegal tag names and attributes specified by the illegalTagNames and illegalAttributeNames properties.

The following is a list of the values added to the illegalTagNames property if alwaysAddDefaults is true:

img,script,iframe,frame,applet,embed,object,meta

The following is a list of the values added to the illegalAttributeNames property if alwaysAddDefaults is true:

onabort,onactivate,onafterprint,onafterupdate,onbeforeactivate,
onbeforecopy,onbeforecut,onbeforedeactivate,onbeforeeditfocus,
onbeforepaste,onbeforeprint,onbeforeunload,onbeforeupdate,onblur,
onbounce,oncellchange,onchange,onclick,oncontextmenu,oncontrolselect,
oncopy,oncut,ondataavailable,ondatasetchanged,ondatasetcomplete,
ondblclick,ondeactivate,ondrag,ondragend,ondragenter,ondragleave,
ondragover,ondragstart,ondrop,onerror,onerrorupdate,onfilterchange,
onfinish,onfocus,onfocusin,onfocusout,onhashchange,onhelp,oninput,
onkeydown,onkeypress,onkeyup,onload,onlosecapture,onmessage,onmousedown,
onmouseenter,onmouseleave,onmousemove,onmouseout,onmouseover,onmouseup,
onmousewheel,onmove,onmoveend,onmovestart,onoffline,ononline,onpaste,
onpropertychange,onreadystatechange,onreset,onreset,onresize,onresizeend,
onresizestart,onrowenter,onrowexit,onrowsdelete,onrowsinserted,onscroll,
onsearch,onselect,onselectionchange,onselectstart,onstart,onstop,onsubmit,
onunload,src

If you want to remove an individual default string value from the illegalTagNames or illegalAttributeNames property, use the +=- operator. For example, if alwaysAddDefaults is true, you can to remove the value onscroll from the illegalAttributeNames property by adding the following to the properties file:

illegalAttributeNames+=-onscroll

If you want to remove all of the default values from both the illegalTagNames and illegalAttributeNames properties, set the alwaysAddDefaults property to false.