html_url,issue_url,id,node_id,user,user_label,created_at,updated_at,author_association,body,reactions,issue,issue_label,performed_via_github_app
https://github.com/simonw/datasette/issues/648#issuecomment-625286519,https://api.github.com/repos/simonw/datasette/issues/648,625286519,MDEyOklzc3VlQ29tbWVudDYyNTI4NjUxOQ==,28694175,chekos,2020-05-07T14:23:22Z,2020-05-07T14:28:33Z,NONE,"Hi! I'm using datasette on this repository: https://github.com/chekos/RIPA-2018-datasette

and on my local machine i can see an /about page i created but when i deploy to heroku i get a 404  (http://ripa-2018-db.herokuapp.com)

<img width=""629"" alt=""Screen Shot 2020-05-07 at 7 04 43 AM"" src=""https://user-images.githubusercontent.com/28694175/81303797-0af75500-9031-11ea-8a02-adee7a2374ea.png"">


I bumped datasette in my requirements file to 0.41 so I'm 100% what the issue is 🤔 

Do you have any idea what could be the problem? 👀 

EDIT: for context, I have a templates directory with a pages/about.html file in https://github.com/chekos/RIPA-2018-datasette/tree/master/datasette/templates","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",534492501,Mechanism for adding arbitrary pages like /about,
https://github.com/simonw/datasette/issues/648#issuecomment-625321121,https://api.github.com/repos/simonw/datasette/issues/648,625321121,MDEyOklzc3VlQ29tbWVudDYyNTMyMTEyMQ==,28694175,chekos,2020-05-07T15:21:19Z,2020-05-07T15:21:19Z,NONE,"It seems that heroku wasn't updating to 0.41 on deployment. 

Had to add `--branch 0.41` and that solved it! Heroku caches dependencies 
<img width=""1331"" alt=""Screen Shot 2020-05-07 at 8 19 08 AM"" src=""https://user-images.githubusercontent.com/28694175/81312379-6f1f1680-903b-11ea-847c-4149268504a6.png"">

and (i think) because the `requirements.txt` doesn't specify the datasette version, it didn't update from 0.40 to 0.41 on heroku even though it was specified on my local requirements file as `datasette >= 0.41`

These are the lines that gave me an idea on how to solve it:
https://github.com/simonw/datasette/blob/182e5c8745c94576718315f7596ccc81e5e2417b/datasette/publish/heroku.py#L164-L186","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",534492501,Mechanism for adding arbitrary pages like /about,