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CORS Error with Rest API

Heitor Fernandes_s0l81p

Hello everyone. This is my first time using a Jira Rest API, and I'm trying to integrate it into my Flutter project. I am using basic authorization for Jira. All of my code is working correctly, but when I attempt to publish my project, I encounter the following error. Could someone please help me with this issue? Captura de tela 2023-05-14 150057.png

Accepted answers

Steve Long -Evelon-

Hi @Heitor Fernandes

Looks like this has already been answered in the below thread within the Atlassian developer community, so might be worth checking this out:

https://community.developer.atlassian.com/t/cors-error-with-rest-api/27354

Essentially though, CORS is an enforcement your browser is enforcing, because your browser notes that the domain for the URL you're requesting does not match the domain for the URL you're currently on.

My assumption is that you're trying to execute this from a client-side instance, rather than using some kind of backend programming language, hence the above. So the answer would be to instead use something like Python, Java, etc that runs on a server.

All comments

Steve Long -Evelon-

Hi @Heitor Fernandes

Looks like this has already been answered in the below thread within the Atlassian developer community, so might be worth checking this out:

https://community.developer.atlassian.com/t/cors-error-with-rest-api/27354

Heitor Fernandes_s0l81p

Oh, I see. Thank you very much for the explanation!

sathishkumar_selvaraj

Hi @Heitor Fernandes ,

Did you get any solution for the above question?

Aryan Awatare

So This is issue for Jira onprem so there is fix for this Jira onprem provides allowlist that you can use for for resloving this issue

For Testing
1.Go to Settings -->System-->On Left you will see Allowlist
2. Turn off allowlist for now for testing and paste below command in your console that give you the list of project
fetch("http://Your_Jira_URL/rest/api/2/project", { (Enter YOur Jira URL )
method: "GET",
headers: {
"Authorization": "Basic " + btoa("admin:myTestPass"), (Enter YOur Password)
"Accept": "application/json"
}
})
.then(res => {
if (!res.ok) {
throw new Error("HTTP Error: " + res.status);
}
return res.json();
})
.then(data => console.log(data))
.catch(err => console.error("Fetch Error:", err));

This will give you the list of project in jira
https://confluence.atlassian.com/adminjiraserver/configuring-the-allowlist-1014667309.html
This will help you configure Allowlist for future

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