I noticed that, say, goolge's 404 page returns a 404 status (http://www.google.com/404.html) while github's returns 200 (https://github.com/404.html). Should error pages (even 503s, etc.) always be served with the correct status codes? Or should front end servers intercept them and display 200ed error pages?
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Error pages should always be served with the correct status codes.
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Thank you -- any chance you have references? – Aaron Gibralter Jun 02 '11 at 01:32
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3@Aaron - besides common sense? I don't know why on earth github would return a 200 OK on a 404 page... – Mark Henderson Jun 02 '11 at 02:05
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@Mark Henderson Access any other invalid URL on GitHub and it'll return a 404. 404.html is a real HTML page that's presumably included when a 404 is encountered. – ceejayoz Jun 02 '11 at 03:36
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Note that this can't be done effectively on IIS 7.5: http://stackoverflow.com/questions/4968018/coldfusion-error-and-iis7-5-error-pages/6618714#6618714 – Jordan Reiter Jul 08 '11 at 00:47
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GitHub's 404.html page is returning 200 because you're directly accessing their 404 template.
https://github.com/lollerskates returns a 404 status code, as it should be.
ceejayoz
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Ahh yeah, I realized that after I posted. I guess Google doesn't have a file called 404.html... lol. – Aaron Gibralter Jun 02 '11 at 03:41