Is there any benefit to adding accept-charset=”UTF-8″ to HTML forms, if the page is already in UTF-8?

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If the page is already interpreted by the browser as being UTF-8, setting accept-charset="utf-8" does nothing.

If you set the encoding of the page to UTF-8 in a <meta> and/or HTTP header, it will be interpreted as UTF-8, unless the user deliberately goes to the View->Encoding menu and selects a different encoding, overriding the one you specified.

In that case, accept-encoding would have the effect of setting the submission encoding back to UTF-8 in the face of the user messing about with the page encoding. However, this still won’t work in IE, due the previous problems discussed with accept-encoding in that browser.

So it’s IMO doubtful whether it’s worth including accept-charset to fix the case where a non-IE user has deliberately sabotaged the page encoding (possibly messing up more on your page than just the form).

Personally, I don’t bother.

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