GraphQL query error with API version 2025-01 (Unsupported Content-Type header)

[shevabam]

Hello,
With Shopify API version 2025-01, calling a GraphQL query no longer works:

Unsupported Content-Type header, use application/json

Indeed, since 2025-01, the Content-Type header application/graphql is deprecated (https://shopify.dev/changelog/content-type-application-graphql-is-deprecated).

In the file HttpRequestGraphQL.php, line 53, the Content-Type is forced to application/graphql.

It works fine by removing the if/else and putting only:

self::$postDataGraphQL = json_encode(['query' => $data, 'variables' => $variables]);
self::$httpHeaders['Content-type'] = 'application/json';

Thanks