Yes, I had raised this as something you'd need to do already a few posts back:
Again, this is entirely out of scope for the purpose of this forum. This is an issue of how to load WSO2 IS in an <iframe> and has nothing to do with SAML or the ELK Stack. It's not that I don't want to help you but I don't know how as I have no experience whatsoever with WSO2 IS. I'd try to look up how to set or overwrite the x-frame-options header in WSO2 IS. The error message you shared indicates you tried that and something went wrong but I can't help more than that. Try here: Issues · wso2/product-is · GitHub maybe ?