293423 - Dashes parsed incorrectly within HTML comments

Status: RESOLVED INVALID

(Firefox :: General, defect)

Description

[choinet]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.7) Gecko/20050414 Firefox/1.0.3
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.7) Gecko/20050414 Firefox/1.0.3

Using two or more dashes in succession "--" within <!-- --> comments causes the
comment to end prematurely, leaving the rest of the comment exposed for
rendering within the browser.

Reproducible: Always

Steps to Reproduce:
1. Create an HTML page with the following code:

<!--
Hello world -- this is a test
-->
Actual Results:  
-- Hello world -- this is a test -->

Expected Results:  
Display nothing

Using four or five dashes in a row hides the comment. It alternates depending on
the number of success dashes.

Comment 1

[Matthias Versen [:Matti]]

see http://www.w3.org/TR/html401/intro/sgmltut.html#h-3.2.4

-> invalid