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Angular js and AWS expert

Our backend is built with Angular 4 and it is deployed on AWS using Serverless. All things are working very well but we have very one small issue. If a custom header is added, it throws warning as follows.

"Cross-Origin Request Blocked: The Same Origin Policy disallows reading the remote resource at [login to view URL] (Reason: missing token ‘app_version’ in CORS header ‘Access-Control-Allow-Headers’ from CORS preflight channel)."

"Cross-Origin Request Blocked: The Same Origin Policy disallows reading the remote resource at [login to view URL] (Reason: CORS request did not succeed)."

The "app_version" is the custom header I added.

If I remove this custom header, all things are working fine.

I need help right now. For expert, it will not take longer than 30 minutes. As soon as the issue is resolved, I am going to pay immediately. Thanks.

Skills: Angular.js, node.js, Amazon Web Services, Express JS

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About the Employer:
( 0 reviews ) Shenyang, China

Project ID: #22254901

4 freelancers are bidding on average $39 for this job

electrobeam

Hi, I think you need to configure CORS in the backend. I hope you are using AWS API Gateway and lambda . Let me fix it. Thank you

$50 USD in 1 day
(4 Reviews)
3.1
Fantastic211

Hello, dear Customer. I am interested in your project and feel confident after reading your project description. Please contact me so that we can discuss it in more detail. Looking forward to hearing from you soon. Tha More

$30 USD in 7 days
(1 Review)
1.0
rp07364

Hi Employer, Greeting of the Day!! Thank you for sharing this interesting project. I have read the project. I am very much interested in this project. I am well experienced Web Developer from the industry and I can More

$30 USD in 7 days
(0 Reviews)
0.0
angelsreturn

Hi lets fix it, i have faced these issues multiple times. And fixed it. I have 2+ years of experience in software development industry

$45 USD in 1 day
(0 Reviews)
0.0