Apache Redirect to two different servers bases on URL
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I want to do the following:

I've a server A (`http://server-a:9000/`) and the server B (`http://server-b:8000/`). Additionally I've installed an Apache running on port 80. 

When I access the apache with `http://localhost/product` I want to pass this request to `http://server-a:9000/product` 

and 

when I access the apache with `http://localhost/details` I want to pass the request to `http://server-b:8000/details`. 

I'v got this working with the following configuration:

    ProxyPass /product http://server-a:9000/product
    ProxyPassReverse /product http://server-a:9000/product
    
    ProxyPass /details http://server-b:8000/product
    ProxyPassReverse /details http://server-b:8000/product

But with this configuration the original URL `http://localhost/product` is replaced by `http://server-a:9000/product`. 

How can I configure my Apache so that it doesn't replace the URL? The displayed URL should always be `http://localhost/product`.




Thank you in advance

Torben