Redirect strips query params

[DevPowers]

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App Id

d1op66f9k171p6

Region

us-east-1

Amplify Hosting feature

Redirects

Describe the bug

1. When navigating to my website via the URL:
   'example.com?query1=query1' domain is redirected -> 'www.example.com' stripping the query params

Expected behavior

1. When navigating to my website via the URL:
   'example.com?query1=query1' domain is redirected -> 'www.example.com?query1=query1'

2. The expected behavior works for my subdomains but not the main domain. 'subdomain.example.com?query1=query1' domain is redirected -> 'www.subdomain.example.com?query1=query1'

Reproduction steps

1. I can trigger the bug by entering my domain without the WWW and query params. The result is being navigated to the WWW domain with query params stripped.

Build Settings

version: 1
frontend:
  phases:
    preBuild:
      commands:
        - npx ci
    build:
      commands:
        - if [[("${AWS_BRANCH}" = "develop")]]; then npm run build:sandbox; fi
        - if [[("${AWS_BRANCH}" = "main")]]; then npm run build:sandbox; fi
        - if [[("${AWS_BRANCH}" != "main") && ("${AWS_BRANCH}" != "develop")]]; then npm run build:sandbox; fi
  artifacts:
    baseDirectory: build
    files:
      - '**/*'
  cache:
    paths:
      - node_modules/**/*

Additional information

No response

[davidaugustus-focusmate]

My team is having this same issue.

The workaround detailed here doesn't seem to work for us: https://github.com/aws-amplify/amplify-hosting/issues/886#issuecomment-668249281

I've added a redirect for https://mydomain.io/<*> to https://www.mydomain.io/<*> but it doesn't seem to make a difference.

[ghost]

Hi @DevPowers and @davidaugustus-focusmate 👋🏽 apologies for the delay. According to the Amplify documentation, dropping the query params is intended behavior:

If the destination address for the matching rule has query parameters, query parameters aren't forwarded. For example, if the destination address for the redirect is https://example-target.com?q=someParam, query parameters aren't passed through.

Please read more about implementing query params here: https://docs.aws.amazon.com/amplify/latest/userguide/redirects.html#query-parameters

[ghost]

Closing as a duplicate of #97

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