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Feasibility of porting Stylus to Manifest v3? #1761

Answered by tophf
chocmake asked this question in Q&A
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The only affected features are Instant inject mode and Patch CSP to allow style assets. There are no good workarounds yet, which is why I don't rush the migration. The migration itself isn't complicated.

There'll be also an annoyance with handling .user.css redirection to install the styles. In ManifestV3 we can't use webRequestBlocking to redirect it to our page, so the only way to do it in the same seamless fashion would be to use declarativeNetRequest + web_accessible_resources, which I'm reluctant to use as it makes the extension detectable even on sites that aren't styled. On the other hand, it's not really a big deal generally since we expose our styles in DOM on affected pages, so …

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@dazzletune
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