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Cloudflare's recent blog regarding polyfill shows that Cloudflare never authorized Polyfill to use their name in their product (blog.cloudflare.com)

submitted 4 months ago by kryllic@programming.dev to c/technology@lemmy.ml

12 comments fedilink hide all child comments

cross-posted from: https://programming.dev/post/16106778

Contrary to what is stated on the polyfill.io website, Cloudflare has never recommended the polyfill.io service or authorized their use of Cloudflare’s name on their website. We have asked them to remove the false statement, and they have, so far, ignored our requests. This is yet another warning sign that they cannot be trusted.

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[–] avidamoeba@lemmy.ca 2 points 4 months ago* (last edited 4 months ago) (1 children)

I read the story and specifically the bit about the Github account. Isn't this the Polyfill lib's Github account? Because if that's the case, how would a bundler solve the issue? The new owners could modify the original source, then the CICD jobs would happily publish that to registries and from there down into the bundles. Is it a different Github account they're talking about?

[–] i_am_not_a_robot@discuss.tchncs.de 4 points 4 months ago (1 children)

Code pulled from GitHub or NPM can be audited and it behaves consistently after it has been copied. If the code has a high reputation and gets incorporated into bundles, the code in the bundles doesn't change. If the project becomes malicious, only recently created bundles are affected. This code is pulled from polyfill.io every time somebody visits the page and recently polyfill.io has been hijacked to sometimes send malicious code instead. Websites that have been up for years can be affected by this.

[–] avidamoeba@lemmy.ca 0 points 4 months ago (1 children)

Perfect. This is consistent with what I was thinking and that Cloudflare's changes won't fix any recent bundles that might include malicious code.

[–] i_am_not_a_robot@discuss.tchncs.de 1 points 4 months ago

Built bundles are not affected. The service is supposed to figure out which polyfills are required by a particular browser and serve different scripts. Because it's serving different scripts, the scripts cannot be bundled or secured using SRI. That would defeat the purpose of the service.