Hi all,

I recently discovered a bug [0] concerning the xslt_stylesheet directive as
documented here [1].

The root cause of this issue is that the parser of the directive also
modifies it instead of just reading it.

I have created a patch which lets the parser work on a copy of that
data, so that changes to it will not affect subsequent requests.

In my opinion this is merely a workaround, the parser probably should
not modify the data it parsed from the configuration file, but I didn't
feel comfortable to make such a big change.

Since this is my first time working with nginx I am seeking feedback on
the approach I used.


Kind regards,
Karim Malhas



[0] https://trac.nginx.org/nginx/ticket/1416
[1] https://nginx.org/en/docs/http/ngx_http_xslt_module.html#xslt_stylesheet

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