But it is not a hazard to navigation.

The real problem I see here is that HTML nesting enforcement is optional. If it were required, then those trying to use </br> would immediately see their mistake and learn something in the process.

I'd appreciate (and certainly try to apply) any patch that unconditionally enables HTML nesting enforcement in preview (with the already-plumbed, I believe, user-selected "error reporting level for preview"), as the easiest short-term fix with the "most bang for the buck".

In seeing how common the </br> mistake is and further that both IE and FireFox silently interpret </br> as <br />, I've been tempted to have PM also make that silent transformation. But I'm not convinced that is the best idea. But it doesn't matter because it won't be any time soon before I could make such a change, anyway.

As for the minor point of those claiming that <br /> is invalid HTML since PerlMonks doesn't tag its output as "XHTML", I'll note that the HTML standard defines lenient treatment of parts not expected and so, last I heard, <br /> in HTML is precisely defined to be treated as <br>. If someone is having some practical problem with the use of <br /> in PerlMonk's output, please be specific. The partial conformance to XHTML can be useful (for those parsing parts of PM output) but tagging the output as XHTML would be bad since the conformance is not complete. So I'm inclined to continue moving toward XHTML while not violating the HTML standard in any practical way.

- tye        

In reply to Re^5: Add < /br> to Approved tags? (rub) by tye
in thread Add < /br> to Approved tags? by ww

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