Cross-origin call to PLC

Thanks for the suggestion. Meanwhile, I found another way to make it work.

I put a nginx in front of my PLC and now everything is working as expected :-)

Regards,

Laurent

 Hi @lla, I am having the similar issue with your - the cors error. Can you give me any clue about your solution, I mean "how to use nginx in PLC?". Thank you very much.

lla

Thanks for the suggestion. Meanwhile, I found another way to make it work.

I put a nginx in front of my PLC and now everything is working as expected :-)

Regards,

Laurent

Hello,

In fact, configuring a reverse proxy via Nginx/Apache to route the calls to the PLC is (to me) the best solution to this problem. CORS comes only because a request goes from one domain (usually a website) to another domain (the PLC IP address) and is coming from the Browser itself.If you configure a reverse proxy by using your.domain.com, all the requests coming from you browser will then go to Nginx/Apache and will then be routed to the PLC(s).

I would even advise to secure the connection by using HTTPS via this web server. This way you get the following flow :

request ---HTTPS---> Nginx/Apache ---HTTP---> PLC

I don't know if I'm providing all the details you where expecting...

Regards,

L.

Hello AutoGen,

the topic creator has already left the community, so you won't receive an answer. Please describe your question/ issue more in detail and tell us what you want to do, which Siemens stuff you are using, etc. Please keep in mind: the more detailed the information, the faster you get a suitable answer.