Re: Warn about unknown parameters

> >By what standard is ;1 a CGI param?  Not by anything official.
>
> «Anything official» specified «&» as the separator.
>
> I rest my case... :-)

Wrong! (I think.)

Rebuttal:
(from the HTML 4.01 specification)

--------------------
B.2.2 Ampersands in URI attribute values
The URI that is constructed when a form is submitted may be used as an
anchor-style link (e.g., the href attribute for the A element).
Unfortunately, the use of the "&" character to separate form fields
interacts with its use in SGML attribute values to delimit character entity
references. For example, to use the URI "http://host/?x=1&y=2" as a linking
URI, it must be written <A href="http://host/?x=1&#38;y=2"> or <A
href="http://host/?x=1&amp;y=2">.

We recommend that HTTP server implementors, and in particular, CGI
implementors support the use of ";" in place of "&" to save authors the
trouble of escaping "&" characters in this manner.
--------------------

This says nothing about escaping the semicolon when used as a separator, so
that must mean that his URL was perfectly valid, right?