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Re:It’s time to kill the web app by dasil003 on Saturday September 23, 2017 @07:46PM (#15322401)
> From the perspective of anyone making a web site it's very easy to secure yourself against JS running on a third party domain: don't load any.

No that's only half the solution, the other (much harder) half is to ensure you have no XSS. The GP's point was if they hadn't allowed cross-origin scripting it would have had big security benefits.

Re:It’s time to kill the web app by astura on Sunday September 24, 2017 @03:11PM (#15326007)
Set the Content-Security-Policy in the HTTP response.