Like WebKit and IE6…9, Firefox Nightly now lets you opt out of charset menu using UTF-8 BOM. Useful for widgets iframed by less clued sites.
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Replying to @hsivonen
@hsivonen Does the charset= parameter on the type do the same?

Jan 21, 2013 · 3:37 PM UTC

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Replying to @davidbaron
@davidbaron It does not (except in Gecko in the UTF-16 case as an XSS defense).
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@hsivonen Ugh. So this provides people a reason to prefer BOMs? (and depend on nearly-invisible characters at the start of files)
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