njs: get raw requestURI or full querystring

[Gunter Grodotzki]

sadly the whole object is empty. no key / no value.

> On 28 Apr 2021, at 14:17, Sergey A. Osokin <osa at freebsd.org.ru> wrote:
> 
> On Wed, Apr 28, 2021 at 07:45:37AM +0200, Gunter Grodotzki wrote:
>> Unfortunately r.args is empty if no key/value pair is given.
> 
> Well, the r.args is empty in case of an emptyness of a querystring.
> 
> But we have a bit different case when URL contains a query
> string with a key, but without a value for that one,
> i.e. "https://url.rw/?https%3A%2F%2Flifeofguenter.de".
> 
> So, the "https%3A%2F%2Flifeofguenter.de" is the key and its value
> is empty.
> 
> -- 
> Sergey Osokin
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