问题描述
我正在通过localhost:8000上的elm-reactor运行elm前端.它应该通过localhost:8010上的gunicorn从 falcon后端加载json文件.这会失败.
I am running an elm frontend via elm-reactor on localhost:8000. It is supposed to load json files from a falcon backend running via gunicorn on localhost:8010. This fails.
前端能够加载由elm-reactor(:8000)服务的静态虚拟文件，但是当我尝试用实际后端(:8010)替换虚拟对象时，由于缺少标头，它会失败:
The frontend is able to load static dummy files served by elm-reactor (:8000) but when I try to replace the dummies by the actual backend (:8010) it fails due to a missing header:
来自Firefox Inspector的错误消息似乎相当清楚，但是我不知该如何解决.我已经在猎鹰中安装了CORS中间件，但这根本没有改善情况.
The error message from the Firefox Inspector seems reasonably clear, but I'm at a loss how to fix that. I already installed a CORS middleware in falcon, but that didn't improve the situation at all.
from falcon_cors import CORS
cors = CORS(allow_origins_list=['*'])
api = falcon.API(middleware=[cors.middleware])
我也曾尝试使用起源'localhost:8000'和'localhost'，但都没有用.
I did also try to use the origins 'localhost:8000' and 'localhost' but neither works.
有什么办法解决这个问题吗?
Any idea how to fix this?
推荐答案
事实证明，falcon_cors提供了allow_all_origins=True作为参数.这可以解决我的问题，但不是完美的解决方案.
It turns out that falcon_cors offers allow_all_origins=True as a parameter. This fixes my problem, but isn't a perfect solution.
在同时使用POST请求时，也应设置allow_all_methods=True.
When using POST requests as well allow_all_methods=True should be set as well.
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