Common Problems
If you are deploying Jet Bridge behind a proxy or some webserver you can start receiving the following errors in your browser console:
Access to XMLHttpRequest at '...' from origin 'https://app.jetad.io.io' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource.
Normally you shouldn't have this issue as Jet Bridge automatically adds the appropriate CORS headers to all responses.
To fix CORS issue for Nginx add the following to your server config:
my-website.conf
server {
listen 80;
...
location / {
###################################
# START
# Add this block to your location
###################################
proxy_hide_header 'Access-Control-Allow-Origin';
proxy_hide_header 'Access-Control-Allow-Methods';
proxy_hide_header 'Access-Control-Allow-Headers';
proxy_hide_header 'Access-Control-Expose-Headers';
if ($request_method = 'OPTIONS') {
add_header 'Access-Control-Allow-Origin' '*' always;
add_header 'Access-Control-Allow-Methods' 'GET, POST, PUT, PATCH, DELETE, OPTIONS';
add_header 'Access-Control-Allow-Headers' 'Authorization,DNT,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Range';
add_header 'Access-Control-Max-Age' 1728000;
add_header 'Content-Type' 'text/plain; charset=utf-8';
add_header 'Content-Length' 0;
return 204;
}
add_header 'Access-Control-Allow-Origin' '*' always;
add_header 'Access-Control-Allow-Methods' 'GET, POST, PUT, PATCH, DELETE, OPTIONS';
add_header 'Access-Control-Allow-Headers' 'Authorization,DNT,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Range';
add_header 'Access-Control-Expose-Headers' 'Content-Length,Content-Range';
###################################
# END
###################################
...
proxy_pass http://webserver;
...
}
}
This is because newer versions of Pillow Python library are incompatible with Python 3.4 or lower. Install older version to fix this error:
pip install pillow==4.3.0
This is because newer versions of dateparser Python library are incompatible with Python 3.4 or lower. Install older version to fix this error:
pip install dateparser==0.7.1
The problem is that
django-modeltranslation patches Django models so you need to load jet_django package only after django-modeltranslation has finished its patching this way in your settings.py:INSTALLED_APPS = (
...
'modeltranslation',
'jet_django', # load after modeltranslation
...
)
Last modified 2yr ago