map problem : how to debug it ?

[Igor Ippolitov]

Gilles,

When you enter a url with an anchor into a browser, the browser will 
only request a URL without the anchor from the web server.
The web servers gets only the part you see in logs.
For '/Doc.html#case1' the web server will receive a request for 
'/Doc.html'. The anchor is used by the browser itself to navigate within 
a page.

You can't rely on the anchor part to make decisions on the web server side.

AFAIK, the anchors were initially to scroll to a an element with a 
corresponding ID.
Later it was reused by JS frameworks to build navigation within so 
called single page applications.

This link may help: 
https://en.wikipedia.org/wiki/Single-page_application#Browser_history 
(note that it also uses an anchor ;)

To sum it up: there is no solution to the problem you are asking about.
But most likely this is an XY problem: 
https://en.wikipedia.org/wiki/XY_problem .

Hope this helps,
Igor.

On 13.04.2022 10:41, gperrot wrote:
> Thanks a lot for all your answers !
>
> Since I have the case below with anchor (fragment-ID in URL to map to one
> specific action in my doc.map :
>
> /Doc.html#case1 https://domain2.com/action1;
> /Doc.html#case2 https://domain2.com/action2;
> /Doc.html https://domain2.com/action3;
>
> How can I do this kind of mapping with Nginx ?
>
> For the moment, my conf is :
> map $uri $new_uri {
>      include /etc/nginx/conf/doc.map;
> }
>
> If I type https://domain1.com/Doc.html, the map for action3 works but if I
> type https://domain1.com/Doc.html#case1 or
> https://domain1.com/Doc.html#case2, the map doesn't work.
>
> Any idea how to solve that ?
>
> Thanks in advance for your help.
>
> Gilles
>
> Posted at Nginx Forum: https://forum.nginx.org/read.php?2,293930,293948#msg-293948
>
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