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Helper I
Helper I

Notification Component -Error loading component


I am creating PCF signal R notification component. I am following the documentation from the below URL


There were 3 parts(powerapps framework-typescript, Creating function in Azure, powerapps ) in the documentation, which i have done .

But i see Error Loading Control when i use the component. Has anyone faced similar kind of problems particularly for this component or do you have any fix or advice to me. 

Please let me know if i need to share any other information.





Helper I
Helper I

Error message i get. Thanks in advance.


The issue relates to CORS or Cross Origin Resource Sharing see 


Your function in Azure needs to return a Access-Control-Allow-Origin header in the response but I suspect adding just 


req.HttpContext.Response.Headers.Add("Access-Control-Allow-Origin", "*");

 will be enough.

If this post has answered your question please consider it for "Accept as Solution" or if it has been helpful give it a "Thumbs Up".

Hi, Thanks for the response. Please could you let me know where should i paste the code exactly. Is it in the function which i created in Azure. if yes, that function is not editable for me.

how can i edit that ? Please could you let me know?





I do agree with Ben. I would also say it is because of CORS.

As I know you can configure this in your Azure portal. When you open the Function, go to the tab "Platform features" and open "CORS" under API a flyout configuration will come in from the right. There you can add your source. I would not recommend adding a "*" there because this will allow requests from everywhere.




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