We have created an Azure resource group from the portal, named Instruktører (notice the special character ø). When we try and perform a GET call using azure-sdk-for-js (https://github.com/Azure/azure-sdk-for-js/blob/master/sdk/resources/arm-resources/src/operations/resourceGroups.ts#L115) on this resource group, it throws an error:

(node:57737) UnhandledPromiseRejectionWarning: Error: "resourceGroupName" with value "Instruktører" should satisfy the constraint "Pattern": /^[-\w\._\(\)]+$/.
    at failValidation (/Azure/node_modules/@azure/arm-resources/node_modules/@azure/ms-rest-js/dist/msRest.node.js:461:19)

Expected behaviour:
Since the portal accepts the resource group name Instruktører, we'd expect the SDK to accept it as well and not throw the above error.

Please check if the swagger definitions needs to be updated: