id,node_id,number,title,user,state,locked,assignee,milestone,comments,created_at,updated_at,closed_at,author_association,pull_request,body,repo,type,active_lock_reason,performed_via_github_app,reactions,draft,state_reason
1058790545,I_kwDOBm6k_c4_G9yR,1519,base_url is omitted in JSON and CSV views,157158,closed,0,,,22,2021-11-19T18:10:45Z,2021-12-01T17:50:09Z,2021-11-20T19:11:21Z,NONE,,"I have a datasette deployment, using Apache2 to reverse proxy:

       ProxyPass /ged http://thor.phfactor.net:8001
       ProxyPreserveHost On

In settings.json I have
```json
{
    ""base_url"": ""/ged/"",
    ""trace_debug"": 1,
    ""template_debug"": 1
}
```
and datasette works correctly. However, if you view a query and then click on the 'This data as json, CSV' both links omit the base_url prefix and are therefore 404.",107914493,issue,,,"{""url"": ""https://api.github.com/repos/simonw/datasette/issues/1519/reactions"", ""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,completed
637395097,MDU6SXNzdWU2MzczOTUwOTc=,838,Incorrect URLs when served behind a proxy with base_url set,79913,closed,0,,6026070,14,2020-06-11T23:58:55Z,2021-11-20T19:35:48Z,2021-11-20T19:35:48Z,NONE,,"I'm running `datasette serve --config base_url:/foo/ …`, proxying to it with this Apache config:

        ProxyPass /foo/ http://localhost:8001/ 
        ProxyPassReverse /foo/ http://localhost:8001/ 

and then accessing it via `https://example.com/foo/`.

Although many of the URLs in the pages are correct (presumably because they either use absolute paths which include `base_url` or relative paths), the faceting and pagination links still use fully-qualified URLs pointing at `http://localhost:8001`.

I looked into this a little in the source code, and it seems to be an issue anywhere `request.url` or `request.path` is used, as these contain the values for the request between the frontend (Apache) and backend (Datasette) server. Those properties are primarily used via the `path_with_…` family of utility functions and the `Datasette.absolute_url` method.",107914493,issue,,,"{""url"": ""https://api.github.com/repos/simonw/datasette/issues/838/reactions"", ""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,completed