HTML_tag

Syntax

HTML_tag = event_handler

Description

List of HTML tags used by WebSEAL to identify and filter absolute URLs embedded in JavaScript™. JavaScript allows HTML tags to contain event handlers that are invoked when certain events occur. For example, the HTML tag:

<form onsubmit="javascript:doSomething()">

causes the JavaScript function doSomething() to be called when the form is submitted.

The entries in this stanza are used to identify HTML tags that may contain JavaScript code. When such a tag is discovered, WebSEAL searches the tag to filter any absolute URLs embedded in the JavaScript. For example, if the "form onsubmit" example looked like:

<form onsubmit="javaScript:doSomething('http://junction.server.com')">

WebSEAL HTML filtering would modify the tag to look like:

<form onsubmit="javaScript:doSomething('/junction')">

Administrators can add additional entries when necessary. New entries must consist of valid HTML tags that are built into JavaScript. When adding new entries, maintain alphabetical order.

Options

HTML_tag

HTML tag.

event_handler

JavaScript event handler.

Usage

This list is required. Although not all tags are required by all applications, the unused tags do no harm. Leave the default entries in this list.

Default value

Default HTML tags and event handlers:

A = ONCLICK
A = ONDBLCLICK
A = ONMOUSEDOWN
A = ONMOUSEOUT
A = ONMOUSEOVER
A = ONMOUSEUP
AREA = ONCLICK
AREA = ONMOUSEOUT
AREA = ONMOUSEOVER
BODY = ONBLUR
BODY = ONCLICK
BODY = ONDRAGDROP
BODY = ONFOCUS
BODY = ONKEYDOWN
BODY = ONKEYPRESS
BODY = ONKEYUP
BODY = ONLOAD
BODY = ONMOUSEDOWN
BODY = ONMOUSEUP
BODY = ONMOVE
BODY = ONRESIZE
BODY = ONUNLOAD
FORM = ONRESET
FORM = ONSUBMIT
FRAME = ONBLUR
FRAME = ONDRAGDROP
FRAME = ONFOCUS
FRAME = ONLOAD
FRAME = ONMOVE

FRAME = ONRESIZE
FRAME = ONUNLOAD
IMG = ONABORT
IMG = ONERROR
IMG = ONLOAD
INPUT = ONBLUR
INPUT = ONCHANGE
INPUT = ONCLICK
INPUT = ONFOCUS
INPUT = ONKEYDOWN
INPUT = ONKEYPRESS
INPUT = ONKEYUP
INPUT = ONMOUSEDOWN
INPUT = ONMOUSEUP
INPUT = ONSELECT
LAYER = ONBLUR
LAYER = ONLOAD
LAYER = ONMOUSEOUT
LAYER = ONMOUSEOVER
SELECT = ONBLUR
SELECT = ONCHANGE
SELECT = ONFOCUS
TEXTAREA = ONBLUR
TEXTAREA = ONCHANGE
TEXTAREA = ONFOCUS
TEXTAREA = ONKEYDOWN
TEXTAREA = ONKEYPRESS
TEXTAREA = ONKEYUP
TEXTAREA = ONSELECT