vcl_error synthetic escape chars

Joe Williams joe at
Fri Dec 4 17:51:44 CET 2009

Thanks Poul but I think I'm still doing something incorrectly.

root at ubuntu:~# curl http://localhost:6081/test/adsf

         synthetic {"%7b"error":"not_found","reason":"missing"%7d

Do I need to do something differently with the quotations?


On 12/4/09 2:59 AM, Poul-Henning Kamp wrote:
> In message<4B18488D.8030105 at>, Joe Williams writes:
>> I am attempting to write my own error message in vcl_error and am
>> running into an issue with escaping out "{" and "}".
>>          synthetic {"\{"error":"not_found","reason":"missing"\}
>> This compiles and works but when I produce the error I get the slashes
>> in the response:
>> root at ubuntu:~# curl http://localhost:6081/test/adsf
>> \{"error":"not_found","reason":"missing"\}
>> I searched around and didn't find anything, is it possible to escape out
>> the curly braces and keep them from showing up in the response?
> Yes I belive %7b ... %7d will work.

Name: Joseph A. Williams
Email: joe at

More information about the varnish-misc mailing list