Hi,

I would try this with a location block...

location /URL/of/Picture/tobereplaced.png {
root /var/www/test1;
try_files where/stored/image1.png;
}

location / {
continue to proxy pass everything else

Hope this helps

Ian

On 24/06/2022 00:01, Jason Prouty wrote:
> Is it possible to replace an PNG file with a local image
> I want to reverse proxy to site and then change the image returned
>
> I have tried the sub_filter setting but nothing changes.
>
>
> server {
>     server_name test1.example1.com;
>
> location /{
>     proxy_ssl_server_name on;
>     proxy_pass   https://test1.example2.com;
>     sub_filter '<img
> src="https://test1.example2.com/assets/images/image1.png' '<img
> src="https://test1.example1.com/image1.png';
>     sub_filter_once on;
>     }
>
> I just want to replace the image of  the proxied
> https://test1.example2.com
> https://test1.example2.com;https://esim.jcius.com/assets/images/powered-by-dark.png
> https://test1.example2.com/assets/images/image1.png
> https://test1.example2.com/assets/images/image1.png
> with
> a new image hosted locally on my nginx
>
>
>
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--
Ian Hobson
Tel (+66) 626 544 695
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