On the main page of StackExchange sites, hovering over any question link produces a quick preview of the body of the question, which is a very nice feature. However, newlines in the body are reproduced as newlines in the hover-text source. This causes Firefox 3.6 to silently drop the newlines, mashing together text from different paragraphs in jarring, poorly-punctuated fashion (e.g. "… by clicking DraftsI'd like to see …", or "…deleted their own question?I provided an answer…"). It would be nice if the backend could replaced newlines with spaces instead.
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You're taking that part of the spec out of context. Here it is in full:
In other words, you're limited to that small set of characters (which, you should note, does not include spaces) iff you don't put the attribute in quotes.
Given that, it's clear that line feeds, carriage returns, and tabs are valid characters.
What it appears you'd like is for SO to change their line feeds (per the spec, ignored by FF) to carriage returns (per the spec, converted into spaces). Is that correct?
Note that neither IE or Chrome or Safari have this behavior. They all display newlines in the
Opera also makes this mistake, but I expect softheadedness from Opera.