3170753 - Z custome Tcode Authentication issue in SAP Build Work Zone, standard edition

Symptom

Z custom Tcode in SAP Build Work Zone, standard edition by using SAP GUI for HTML fails with the below error:
<Authentication URL> refused to connect

On Console it shows with below error
Refused to frame 'https://abcdefgh.authentication.region.hana.ondemand.com/' because an ancestor violates the following Content Security Policy directive: "frame-ancestors https://abcdefgh.authentication.region.hana.ondemand.com".

Environment

SAP Business Technology Platform
SAP Build Work Zone, standard edition

Product

SAP Build Work Zone, standard edition all versions ; SAP Business Technology Platform all versions

Keywords

Custom domain, Z custom code, Fiori Launchpad, Authentication, Content Security Policy directive, ancestor, CF, , KBA , EP-WZ-DMN , Custom Domain , Problem

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