Proposal-shadowrealm Alternatives

proposal-shadowrealm reviews and mentions

• Pulsar, micro creative coding playground
  9 projects | news.ycombinator.com | 2 Sep 2024

  Unfortunately, it was too easy to trigger XSS: https://muffinman.io/pulsar/?grid=classic&animate=scale&code...

  It is really hard to make a correct sandbox in JS in general, until we eventually get something like the Realms proposal [1].

  [1] https://github.com/tc39/proposal-shadowrealm

• Updates from the 98th TC39 meeting
  10 projects | dev.to | 29 Sep 2023

  ShadowRealm: ECMAScript Proposal, specs, and reference implementation for Realms [Stage 3 -> 2].

• Should you use jest as a testing library?
  6 projects | dev.to | 27 Jul 2023

  You can't out of the box. There is an open issue on the Node.js repositoryto let the node:vm module to use the vm's context, but it is still open. It seems that the Node.js core team is interested in fixing this problem by implementing the new ShadowRealm spec, and I think we will make some progress during 2023.

• Building an Extension System on the Web
  7 projects | dev.to | 2 Jun 2023

  ShadowRealms — a successor of the Realms proposals, this API is intended for use cases exactly like plugins or extension systems, providing an option for creating distinct global environments to run the code in. While not entirely secure on its own, this API could provide a strong foundation to build actual extension systems on the Web. That said, 4 years later, the TC39 proposal is currently only at stage 3, not implemented by any browser;

• Vitest vs Jest benchmarks on a 5 year old real work SPA
  3 projects | dev.to | 27 May 2023

  With --no-isolate it was 2.8x faster than vitest and 1.7x faster than Jest, but 19 tests failed (see table above). Some people report issues with watch mode when using --no-isolate. So I decided to not pursue it any further. Once the vm module that Vitest relies on supports ESM, or when the amazingly named Shadow Realms are added to JavaScript, we will likely get this performance boost for free without the downsides.

• Improving Vitest Performance
  2 projects | dev.to | 11 May 2023

  If ShadowRealms are ever added to EcmaScript (and implemented into V8/Node) they'll allow for a different approach to isolating code that would be faster without the downsides of sharing global.

• Virtualization is not an important enough use case for the web platform to tradeoff ergonomics and possible confusion for web devs, who by and large […] do not understand the separation between the specs. More to the point, they really shouldn't need to.
  1 project | /r/programmingcirclejerk | 12 Apr 2023
• Is there an npm package for perchance?
  1 project | /r/perchance | 11 Feb 2023

  Eventually I will get around to creating a "proper" package by just grabbing all the JS that is loaded by the code in the iframe, and bundling it up. We really need the ShadowRealm proposal to go through because the perchance engine messes with a lot of JS internals, so it would mess up the rest of your app. Could do it in a WebWorker, but then everything would have to be async.

• Show HN: Run unsafe user generated JavaScript in the browser
  14 projects | news.ycombinator.com | 19 Nov 2022

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

• Named Element IDs Can Be Referenced as JavaScript Globals
  2 projects | news.ycombinator.com | 27 Sep 2022
• A note from our sponsor - SaaSHub
  www.saashub.com | 19 Jan 2025

  SaaSHub helps you find the best software and product alternatives Learn more →