_utf8 POST parameter on gmail login contains a snowman character
15,052
The _utf8 header along with a Unicode character is to ensure that
- At least one Unicode character is submitted to the server
- Force certain non-compliant browsers to respect the form's character encoding
In some cases, the _utf8 header is given a value of a ☃ and sometimes it is a ✓. What it is doesn't really matter and may have arbitrarily been chosen for fun.
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Comments
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cherouvim almost 2 years
Possible Duplicate:
What is the _snowman param in Ruby on Rails 3 forms for?If you inspect the POST parameters of Gmail login with Firebug or Chrome developer tools, you'll see a
_utf8parameter with a value of☃:_utf8:☃(See the attached image in case your browser doesn't render the value. It's a snowman, U+2603,
http://www.utf8-character.info/#!%E2%98%83.)Why do they do this? Is it possible that they somehow test for browser compatibility to UTF-8?
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Letseatlunch over 11 yearsbro it's 2012 get a stronger password also change ALL you other accounts on the internet that have also have that password
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cherouvim over 11 years@Letseatlunch: Thanks for the advice. As you can see I went into the trouble of bluring the possibly sensitive parts of the request. If you think that I left out my real email and password... well... think again.
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cherouvim over 11 yearsWhy do they care to submit at least one unicode character to the server? What difference does it make?
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p4bl0 over 11 yearscherouvim: It may be to ensure that the rest is unicode as well (for instance on old version of IE) rather than some other local encoding.
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Steve Hill over 11 yearsOriginally in Rails it was a snowman, then they made it a checkmark. It's to force IE to interpret the entire form submission as UTF-8, which it will not do otherwise.
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Janus Troelsen over 11 years@StephenOrr: Which versions of IE?
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Steve Hill over 11 years@JanusTroelsen Not sure, and I can't find any definitive answers. I suspect IE6 and below though. This is just what I remember from the discussions going on when the snowman character was originally added.
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Alex Bitek over 11 yearsTherefore, IE sucks! Don't use it!
