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arturjanc's profile
Artur Janc
Artur Janc
Artur Janc
@arturjanc

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Artur Janc

@arturjanc

Making the web platform more secure one Twitter flamewar at a time.

Zurich, Switzerland
Joined February 2012

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    1. CopperheadOS‏ @CopperheadOS 14 Dec 2017

      Content Security Policy reports aren't very useful without a way to filter out reports from users with extensions. No point of looking through CSP errors from all this advertising, etc. injected into pages. There might be a valid report mixed in with the hundreds of others...

      1 reply 0 retweets 2 likes
    2. superspooktacular isogenies‏ @durumcrustulum 14 Dec 2017
      Replying to @CopperheadOS

      They are useful when setting up or updating a policy, so you can notice changes in the patterns of reports. But agreed, lots of wasted grepping to see whether that weird script is being loaded correctly or by injection.

      1 reply 0 retweets 0 likes
    3. CopperheadOS‏ @CopperheadOS 14 Dec 2017
      Replying to @durumcrustulum

      Ideally, we could ask browsers to avoid sending a report if an extension touched the page in any way. As is, we're not looking at the reports at all because of the noise and yet there might be an issue buried in there.

      2 replies 0 retweets 1 like
    4. Artur Janc‏ @arturjanc 14 Dec 2017
      Replying to @CopperheadOS @durumcrustulum

      This has long been the major problem with violation reports, but it's at least partly addressed by 'report-sample' in CSP3: https://w3c.github.io/webappsec-csp/#violation-sample …

      1 reply 0 retweets 1 like
      Artur Janc‏ @arturjanc 14 Dec 2017
      Replying to @arturjanc @CopperheadOS @durumcrustulum

      In our apps we only look at reports with a script-sample or a blocked-uri, assuming that any real violations would also occur in browsers which send the script sample. Ignore all other, non-actionable reports.

      12:53 PM - 14 Dec 2017
      • 1 Like
      • superspooktacular isogenies
      0 replies 0 retweets 1 like

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