Re: Error when attempting to access Referer

But maybe it could be possible to provide a more user friendly
message? 

 Not a plain / text-only version, but like the rest of the validators
sites maybe? 

 Including the explanation, you just gave to Samuel, would be nice
too. 

 I guess this could help some people... 

 Von: "Jukka K. Korpela" <jkorpela@cs.tut.fi> 

 An: "Miller, Samuel" <Samuel.Miller@ppcc.edu>, 
"www-validator-css@w3.org" <www-validator-css@w3.org> 

 Betreff: Re: Error when attempting to access Referer 

 Datum: Wed, 30 Oct 2013 14:25:30 +0100 

    2013-10-28 23:23, Miller, Samuel wrote: 

 > When attempting to access this link, 

 > http://jigsaw.w3.org/css-validator/check/referer, [1] I get a
message once 

 > the page loads which reads, 

 > 

 > “Some Headers, mandatory for this resource, are missing. 

 > 

 >   * Referer” 

 > 

 > This is the only thing that show up on the page that loads. I
thought 

 > you might like to know about this. 

 As the last part of the URL suggests, the URL is meant to be used in
a 

 situation where the HTTP headers contain a Referer header. This is
the 

 way the validator recognizes the addresses from which it was
“called” so 

 that it knows which page should be validated. 

 Normally browsers send a Referer header when you follow a link. Your 

 browser might have been configured not to do so, as a privacy
measure, 

 or maybe a proxy used by your organization filters the header away.
In 

 any case, you cannot use the validator using that URL if the Referer 

 header (with a value pointing to your page) is not present. 

 You can use a different approach in a link, but then you need to 

 hard-wire your URL (say http://www.example.com) [2] there: 

 http://jigsaw.w3.org/css-validator/validator?uri=http://www.example.com
[3] 

 > Also referrer has 2 Rs: referrer.. 

 The HTTP header name is “Referer” by definition, see 

 http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.36 [4] 

 Yucca

Links:
------
[1]
?ctl=dereferer&amp;to=aHR0cDovL2ppZ3Nhdy53My5vcmcvY3NzLXZhbGlkYXRvci9jaGVjay9yZWZlcmVyLA%3D%3D
[2] ?ctl=dereferer&amp;to=aHR0cDovL3d3dy5leGFtcGxlLmNvbSk%3D
[3]
?ctl=dereferer&amp;to=aHR0cDovL2ppZ3Nhdy53My5vcmcvY3NzLXZhbGlkYXRvci92YWxpZGF0b3I%2FdXJpPWh0dHA6Ly93d3cuZXhhbXBsZS5jb20%3D
[4]
?ctl=dereferer&amp;to=aHR0cDovL3d3dy53My5vcmcvUHJvdG9jb2xzL3JmYzI2MTYvcmZjMjYxNi1zZWMxNC5odG1sI3NlYzE0LjM2