Running Gateway inside Docker Container will not allow to send HTTP GET request with custom headers in browser

[Salman-Arshad]

Problem

I am trying to send custom headers request-public-key and x-request-signature to https://<gateway>/<trxId>. from chrome

Tried Solutions

I tried to add cors so that it can accept Cross-Site requests with Custom headers (mentioned above). Refer to Pull Request
This fixed the problem potentially i.e when running the container without docker via yarn start or npm run dev:start but when the gateway is running inside a docker container via sudo docker container up --build -d it will give CORS issue on the browser.

STR

To reproduce the problem

1. start the gateway from v0.12.1 via sudo docker container up --build -d
2. send a GET request to https://<gateway>/<trxId> from bowser and append some custom headers like

headers":{
  "key1":"value1"
}

3. You will get CORS issue.

To Potentially fix the problem

1. start the gateway from v0.12.1 via yarn start or npm run dev:start
2. send a GET request to https://<gateway>/<trxId> from bowser and append some custom headers like

headers":{
  "key1":"value1"
}

3. You will get 200

Concerns

My main concern is that why when ran without docker it works and gives 200 and when ran without containerizing the application it works just fine

Environment

Docker Version: Docker version 20.10.7, build f0df350
Docker-compose version: docker-compose version 1.29.2, build 5becea4c
OS:Ubuntu 20.04 LTS