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slightlylate's profile
Alex Russell
Alex Russell
Alex Russell
@slightlylate

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Alex Russell

@slightlylate

Chrome Project 🐡 & Web Standards TL; Blink API OWNER Named PWAs w/ @phae; probably making her ☕ DMs open. Tweets my own; press@google.com for official comms.

San Francisco, The Internet
infrequently.org
Joined December 2010

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    1. Eduardo Vela‏ @sirdarckcat 25 Mar 2017
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      Replying to @freddyb

      adding @slightlylate @jaffathecake FYI

      2 replies 0 retweets 2 likes
    2. Alex Russell‏ @slightlylate 25 Mar 2017
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      Replying to @sirdarckcat @freddyb

      : neat work. Not sure i entirely from the RPO vector, tho.

      1 reply 0 retweets 0 likes
    3. Eduardo Vela‏ @sirdarckcat 25 Mar 2017
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      Replying to @slightlylate @freddyb @jaffathecake

      a same dir script referenced by a relative path on http://example.com/index.php/foo  points to the wrong place

      2 replies 0 retweets 1 like
    4. Alex Russell‏ @slightlylate 25 Mar 2017
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      Replying to @sirdarckcat @freddyb

      : the mitigation here is server-side blockage of SW=1 headers, no?

      1 reply 0 retweets 0 likes
    5. Eduardo Vela‏ @sirdarckcat 25 Mar 2017
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      Replying to @slightlylate @freddyb @jaffathecake

      for RPO? Or JSONP? For JSONP, yes. For RPO the attack is to skip the service worker.

      2 replies 0 retweets 2 likes
    6. Eduardo Vela‏ @sirdarckcat 25 Mar 2017
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      Replying to @sirdarckcat @slightlylate and

      that said, for JSONP most websites with JSONP won't know they should block them :-(

      1 reply 0 retweets 0 likes
    7. Alex Russell‏ @slightlylate 25 Mar 2017
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      Replying to @sirdarckcat @freddyb

      : most will also be in wrong path to exploit, tho

      1 reply 0 retweets 0 likes
    8. Eduardo Vela‏ @sirdarckcat 25 Mar 2017
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      Replying to @slightlylate @freddyb @jaffathecake

      the attacker will get a chance to XSS every time the JSONP is used, right? Using foreign fetch

      1 reply 0 retweets 0 likes
      Alex Russell‏ @slightlylate 25 Mar 2017
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      Replying to @sirdarckcat @freddyb @jaffathecake

      @wanderview: interesting. FF could make more persistent, but same issue as JSONP trust relationship?

      6:20 PM - 25 Mar 2017
      1 reply 0 retweets 0 likes
        1. New conversation
        2. Eduardo Vela‏ @sirdarckcat 25 Mar 2017
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          Replying to @slightlylate @freddyb and

          FWIW, JSONP is bad for many reasons, Service Workers is just the latest reason :-)

          1 reply 0 retweets 1 like
        3. Jake Archibald‏ @jaffathecake 25 Mar 2017
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          Replying to @sirdarckcat @slightlylate @wanderview

          half-listening due to leave, but there's a proposal to allow fetch to skip sw https://github.com/whatwg/fetch/issues/492 …

          1 reply 0 retweets 2 likes
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