When you disable CORS from the client request, you've found it doesn't work either. This CORS error is the default and both the client and server have to explicitly state 'no-cors' in their HTTP/HTTPS headers. Your code on the client side sends requests to from B-Client to A, which is Cross-Origin Resource Sharing (CORS). As a client using (B), you request pages/content from (B) which becomes B-Client in this example. In the case of writing your own website for Duet you now have 2 origins: (A) Duet3D Web Server, (B) Your Custom Web Server. Thank you everyone for the you tell me how exactly a reverse proxy circumvents the CORS issue?ĬORS, which is a security feature, is upheld by the browser to maintain that a client is requesting the resources from the same origin. Perhaps this can help debugging the issue further? On a related basis, where do I find the logs of these CORS events server-side? Is there a different way to change the server headers? There used to be a way to hard-code it by editing UseCors in /opt/dsf/conf/http.json from false to true. I'm trying to understand where the error stems from and how your implementation is is there a way to completely disable CORS on the RPi, without gcode? Is it possible to change in the server code? I'm not even sure what is causing the CORS, as I AM connecting to the device from the same location (ie origin) after reset. ![]() Īny help is for the write-up, that's an interesting solution.Ĭan you tell me how exactly a reverse proxy circumvents the CORS issue?Īt the moment, our website is hosted on a domain, in our case with an ingress tunnel from cloudflare. I already set UseCorse to false in the config file and set M586 C"*". (or does it not trigger CORS because it's the same host?) I checked the implementation on the Duet side: ĭo you need to store a sessionkey? when does it refresh? do you need to send it in the header?Ĭould that be the reason you are getting a CORS could you please shine some line on the required communication logic for the Duet websocket to reconnect after reset? How is this solved on the DWC? Is there a description somewhere on how the traffic to the websocket must be structured? Whenever I send reset (M112 + M999), the webapp cannot initiate the connection anymore, giving me a network error. I initiate the connection through the websocket and it works. How to connect to the printer again, after a reset or how can we reset the webserver via running into the same error with a custom web-based app to control my printer. This our httpRequest function, using AxiosRequest export async function httpRequest(config: IRequestConfig) `) It seems that no matter what we do on the server side, nothing works only after either, the printer has been turn off and on again, or the webserver has been restarted ( sudo systemctl restart duetwebserver via SSH). However, if reset is hit (on the DWC, M112 code or physically pushing the reset button), I receive the following error when trying to reconnect: Access to XMLHttpRequest at '' from origin ' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource. Connects, GET, and POST requests can be made. ![]() When the printer and software start, it works like a charm. ![]() The PC is connected to the printer with Duet 3 6HC with the SBC set as an access point. The web control software is hosted on the internet, and accessed via a PC. Import .I'm working on a web controller for Duet. I founded this following solution and add in my spring boot application of configuration class. The problem is when our front end developer try to login from the web-browser for the login he get this error in the front end side:Īccess to XMLHttpRequest at ' from origin ' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.Īt XMLHttpRequest.handleError (xhr.js:117:1) I have following method for the login in the Controller.
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