Re: [csswg-drafts] Proposal: CSS Media Query for Browser Reader Views (#8546)

Just wanted to follow up to say I’d be very interested in seeing data on reader mode usage if there’s any out there? I found discussion of surfacing reader mode usage data [in the Firefox Public Data Report](https://discourse.mozilla.org/t/reader-mode-data/31656), but it seems to have gone nowhere. I’ve experimented with detecting reader mode as @denk0403 suggested, and wasn’t able to so far. 

- In Edge, it changes the protocol, but for a parent page which is generated by Edge with the reader mode interface. The actual site page is loaded in an iframe, as far as I can see with no specific HTTP header or other sign of the rendering mode.
- In Safari, it seems to change the site’s CSS only, again with no special HTTP header.

In both cases, reader mode seems to prevent all JS execution once enabled. It’s probably detectable by tracking HTTP requests to external web content that would be filtered out when reader mode is enabled, but this is more effort than I can go through for now.

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Received on Wednesday, 10 January 2024 10:37:53 UTC