[Flask] flask url_for / nginx proxy_pass

Ulrich Berthold ub at artfacts.net
Fri Jun 10 06:43:58 EDT 2016

hey pascal,

when using blueprints, you can pass the url prefix as an argument to
register_blueprint, like this:

app.register_blueprint(api, url_prefix='/api')

will make api aceesable under https://my.url/api and urls created with
url_for in that context will have the prefix.

there is a  stackoverflow question, which i think handles your problem:


On Fri, Jun 10, 2016 at 11:52:57AM +0200, Pascal wrote:
> hello,
> my flask app (flaskbb <https://github.com/sh4nks/flaskbb>) is listening on
> and is ok when accessed directly with
> when accessed through nginx with http://mywebserver/flaskbb/, all links are
> broken because /flaskbb is missing in the url (eg. src="/css/..." and not
> src="/flaskbb/css/...").
> I currently bypasses the problem by modifying the templates, but it's not
> clean :-(
> how can I solve this problem ?
> note that nginx directive is location /flaskbb/ { proxy_pass
>; } and I can't play with virtual-server/dns.

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