The obvious different is that you don't want to execute arbitrary C code just because a compromised ad network is serving malformed HTML. The ease of attack is much greater on the web.
Mozilla has used "no IE-like privileged mode" as a marketing point in the past. There's obvious benefits, but I hope any modern browser is going to be careful about the sandbox is implemented.
You're comparing incomparable things. Serving a web page in an unsecured environment is an obvious security problem, but completely unrelated to whether you have written a native application in HTML+JavaScript or something more traditional like C.
Would the C version of your native desktop app download code from an online ad network? Then it is just as problematic as a web app in an unsandboxed browser. If the C implementation of your desktop app wouldn't do that, then the HTML+JavaScript implementation of the same application shouldn't either, and there is no problem.
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The obvious different is that you don't want to execute arbitrary C code just because a compromised ad network is serving malformed HTML. The ease of attack is much greater on the web.
Mozilla has used "no IE-like privileged mode" as a marketing point in the past. There's obvious benefits, but I hope any modern browser is going to be careful about the sandbox is implemented.
You're comparing incomparable things. Serving a web page in an unsecured environment is an obvious security problem, but completely unrelated to whether you have written a native application in HTML+JavaScript or something more traditional like C.
Would the C version of your native desktop app download code from an online ad network? Then it is just as problematic as a web app in an unsandboxed browser. If the C implementation of your desktop app wouldn't do that, then the HTML+JavaScript implementation of the same application shouldn't either, and there is no problem.
Actually, you the one making this strange comparison to C code.
My point is simple: IE's sandbox was broken repeatedly, creating a bad reputation and scoring marketing points for other vendors.