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The upcoming JavaScript Shadow Realms proposal looks like it solves a similar problem: https://github.com/tc39/proposal-shadowrealm/blob/main/explainer.md https

• turblety 4y ago
  Realms look really amazing. I'm going to keep a close eye on this. Stage 3 sounds promising.
  • white_dragon88 4y ago
    Too bad the name sounds idiotic. To even mention it to anyone even in the engineering department is going to make me sound like a super nerd.
    • hyuuu 4y ago
      but like, your username tho
• naugtur 4y ago
  There's a related proposal for Compartments and Module constructor is a prerequisite to that. A shim for the entire thing exists, with lockdown and Compartments isolating code: https://github.com/endojs/endo/tree/master/packages/ses https://github.com/endojs/endo/tree/master/packages/ses https://github.com/tc39/proposal-compartments/ https://github.com/tc39/proposal-compartments/ It has usage already, eg. metamask snaps