Re: [D] How to retrieve filter dataMask when applying filters on embedded dashboard [superset]

["LiamTorrelli (via GitHub)" <gi...@apache.org>]

GitHub user LiamTorrelli added a comment to the discussion: How to retrieve filter dataMask when applying filters on embedded dashboard

Yeah — `dataMask` over postMessage only answers after the switchboard handshake finishes. Poke it before that and you get nothing useful, sometimes an exception in the console you'd never see in prod.

Even when you catch a value, filter changes inside the frame don't flow to your parent router. I kept this as a debug hack, not something I'd ship to customers who need back button or shareable views.

Filter isolation is one of six iframe walls I documented with upstream issue links: https://drafted.work/blog/superset-iframe-embedding-problems

GitHub link: https://github.com/apache/superset/discussions/34277#discussioncomment-17393185

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