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wycats's profile
Yehuda Katz 🥨
Yehuda Katz 🥨
Yehuda Katz  🥨
Verified account
@wycats

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Yehuda Katz  🥨Verified account

@wycats

Tilde Co-Founder, OSS enthusiast and world traveler.

Portland, OR
yehudakatz.com
Joined August 2007

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    1. Rafael Dorado‏ @MrFlopis 14 Apr 2017
      Replying to @wycats @jlongster

      Same thoughts here, I wouldn't want to expose all the actions of my page to a future attacker.

      2 replies 0 retweets 2 likes
    2. James Long‏ @jlongster 14 Apr 2017
      Replying to @MrFlopis @wycats

      I seriously don't get this at all. Are you saying you want to write web apps in C and compile it webasm to obscure everything?

      1 reply 0 retweets 3 likes
    3. Yehuda Katz  🥨‏Verified account @wycats 14 Apr 2017
      Replying to @jlongster @MrFlopis

      I don't mind debugging tools that work on production apps. Same origin hole feels dangerous here, but that ship has sailed.

      2 replies 0 retweets 0 likes
    4. Yehuda Katz  🥨‏Verified account @wycats 14 Apr 2017
      Replying to @wycats @jlongster @MrFlopis

      If everyone agreed that JS code on the internet should be considered public and should never include authenticated content we'd agree 💯

      1 reply 0 retweets 7 likes
    5. Yehuda Katz  🥨‏Verified account @wycats 14 Apr 2017
      Replying to @wycats @jlongster @MrFlopis

      That's my perspective, but lots of people continue to try to defend the "authenticated JS code" perspective, which is ridiculous.

      4 replies 0 retweets 1 like
    6. James Long‏ @jlongster 14 Apr 2017
      Replying to @wycats @MrFlopis

      does that mean that JS code served to a page came from a secure place, or the contents that JS has in memory is secure?

      1 reply 0 retweets 0 likes
    7. Yehuda Katz  🥨‏Verified account @wycats 14 Apr 2017
      Replying to @jlongster @MrFlopis

      It means content that contains secret data based on cookies or http auth headers.

      1 reply 0 retweets 0 likes
    8. James Long‏ @jlongster 14 Apr 2017
      Replying to @wycats @MrFlopis

      Again I *think* we're on the same page, but... isn't that every website? You login and it sets a cookie, and you're authenticated

      1 reply 0 retweets 0 likes
    9. Yehuda Katz  🥨‏Verified account @wycats 14 Apr 2017
      Replying to @jlongster @MrFlopis

      HTML content might contain secret data and is reasonably protected by SOP. JS content is poorly protected and shouldn't contain secrets.

      1 reply 0 retweets 1 like
    10. Yehuda Katz  🥨‏Verified account @wycats 14 Apr 2017
      Replying to @wycats @jlongster @MrFlopis

      If your web app has require.registry or something like that and has authed secret content, any third party can get the AUTHED content.

      1 reply 0 retweets 0 likes
      Yehuda Katz  🥨‏Verified account @wycats 14 Apr 2017
      Replying to @wycats @jlongster @MrFlopis

      The only reasonable way to program in JS on the web is to keep secret content OUT of JS.

      7:07 PM - 14 Apr 2017
      • 3 Likes
      • Adam Arrrrrrgyle ⛵💀🗡️🎃👻 Baldur Bjarnason @baldur@toot.cafe Ian De La Cruz
      2 replies 0 retweets 3 likes
        1. James Long‏ @jlongster 14 Apr 2017
          Replying to @wycats @MrFlopis

          Secret meaning something like a cookie, where a 3rd party could steal & do own requests... or just priv info, like twitter DMs?

          0 replies 0 retweets 0 likes
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        2. Yehuda Katz  🥨‏Verified account @wycats 14 Apr 2017
          Replying to @wycats @jlongster @MrFlopis

          I think it would help if people working on web features generally understood this as the state of play.

          1 reply 0 retweets 1 like
        3. James Long‏ @jlongster 14 Apr 2017
          Replying to @wycats @MrFlopis

          It seems hard to keep state out that comes from an authenticated source. Like... how do you build account-based apps?

          2 replies 0 retweets 0 likes
        4. Emelia  👸🏻‏ @ThisIsMissEm 14 Apr 2017
          Replying to @jlongster @wycats @MrFlopis

          Not sure if I'm following correctly here, but are you suggesting that JS should always go to the DOM to fetch secret values rather than mem?

          1 reply 0 retweets 1 like
        5. Yehuda Katz  🥨‏Verified account @wycats 14 Apr 2017
          Replying to @ThisIsMissEm @jlongster @MrFlopis

          I'm suggesting it should come from another source, either HTML, JSON, or whatever, and not be included in the JS source itself.

          2 replies 0 retweets 1 like
        6. James Long‏ @jlongster 14 Apr 2017
          Replying to @wycats @ThisIsMissEm @MrFlopis

          I'd be down with a CSP-style rule where JS must be static (same hash each run for everyone)

          1 reply 0 retweets 1 like
        7. Yehuda Katz  🥨‏Verified account @wycats 14 Apr 2017
          Replying to @jlongster @ThisIsMissEm @MrFlopis

          or we could just disallow credentialed CORS for modules!

          1 reply 0 retweets 2 likes
        8. James Long‏ @jlongster 14 Apr 2017
          Replying to @wycats @ThisIsMissEm @MrFlopis

          Oh, that'd be sweet! Any strong resistance to that?

          1 reply 0 retweets 0 likes
        9. Yehuda Katz  🥨‏Verified account @wycats 14 Apr 2017
          Replying to @jlongster @ThisIsMissEm @MrFlopis

          I'm not sure, but I think writing up what I said more formally and then proposing something concrete would allow us to find out!

          1 reply 0 retweets 0 likes
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