750337 - document.createComment("--") fails

Status: RESOLVED DUPLICATE of bug 412257

(Core :: DOM: Core & HTML, defect)

Description

[Pomax]

Not sure where to file this bug, as there doesn't appear to be a "JS API" category for firefox.

The following javascript fails with an error being thrown, even though there is no reason for it to:

    document.createComment("--");

In fact, any comment text with -- in it somewhere will lead to firefox throwing an error.

However, firefox will happily parse actual HTML source that has '--' somewhere between <!-- and -->, and neither Chrome, Opera or IE throw errors when passed a comment string with '--' in it. It looks like this is a bug left in from how comments used to be parsed back in the day.