Claude Artifacts suddenly blocks writes, users asked to grant full network egress

KeepStandardVoice · reddit · 2026-11-08

A Reddit user reports that updating Artifacts from related projects worked fine last week, but now all writes are blocked and the model demands full network egress permission instead. The user criticizes having to open broad network access just to edit their own artifact — an apparent unannounced change to Anthropic's Artifacts sandbox policy.

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