[Sending from correct account this time and on root thread]

Hello WebKit-dev,

Bumping this thread to give/get an update.

Text-fragments shipped in Chrome M80. We've made lots of improvements to
the spec, notably around issues raised in Mozilla's standards-position

>From Google Search's use (I've seen this being used on Bing as well), we've
seen improvements to user experience metrics and surveys. ajuma@ mentioned
his team might be interested in contributing this to WebKit. I'm wondering
if this is something that WebKit would accept or if there's any updated


On Wed, Dec 11, 2019 at 2:39 PM Maciej Stachowiak <m...@apple.com> wrote:

> Hi David,
> Apple folks have discussed this internally. In general, we think this is
> useful functionality to expose. Some points of feedback (let me know if any
> of these should be filed as an issue against the spec):
> (1) We’re concerned about compatibility issues in a world where some
> browsers support this but not all. Aware browsers will strip `:~:`, but
> unaware browsers won’t. I saw that on the blink-dev ItS thread, it was
> mentioned that at least one site (webmd.com) totally breaks if any
> fragment ID is exposed to the page. This makes it difficult to create a
> link that uses this feature but which is safe in all browsers:
> - Since there is no feature detection mechanism, it’s hard for a webpage
> to know whether it should issue such a link. It would have to be based on
> UA string checks, which is regrettable.
> - A link meant for a supporting browser can end up in a non-supporting
> browser, at the very least by copy paste from the URL field, and perhaps
> through other features to share a link.
> It seems like the spec doesn’t provide a solution for this. We think some
> form of feature detection would slightly improve the situation. Other than
> that, We're not sure how to avoid potential breakage. Maybe evangelize
> WebMD if that’s the only major site that breaks on unexpected fragments?
> (2) The portions of this Community Group report that monkey patch other
> standards (HTML, URL and CSSOM View I think?) should be turned into PRs
> against those specifications. Monkeypatching other specs is not a good way
> to build specifications for the long term.
> (3) Text fragment trumping a regular fragment ID seems a bit strange. The
> more natural semantic would be that the text search starts at the fragment,
> so if there are multiple matches it’s possible to scroll to a more specific
> one. It’s not clear why the fragment is instead entirely ignored.
> We would frame these more as points of concern than opposition to the
> whole idea, but it seems wise to address them before shipping.
> Regards,
> Maciej
> On Dec 2, 2019, at 12:22 PM, David Bokan <bo...@chromium.org> wrote:
> Hello webkit-dev,
> I'd like to solicit feedback as well as an official position from Webkit
> on our proposal for the text fragment directive:
> https://github.com/WICG/ScrollToTextFragment.
> In summary: this is a feature that allows authors and users to craft URLs
> to pages and specify a snippet of text on the page as a subresource
> (visually highlighting it and scrolling it into view). Analogous to
> element-id based fragment anchors but for text.
> You can try this out today in Chrome Beta by enabling 
> chrome://flags/#enable-text-fragment-anchor.
> Here's an example link:
> https://en.wikipedia.org/wiki/Uniform_Resource_Identifier#:~:text=An%20optional%20fragment,element%20into%20view
> Relevant Links:
> <https://github.com/WICG/ScrollToTextFragment/blob/master/README.md>
> Explainer
> <https://github.com/WICG/ScrollToTextFragment/blob/master/README.md>
> Spec <https://wicg.github.io/ScrollToTextFragment/>
> TAG Review <https://github.com/w3ctag/design-reviews/issues/392>
> (Currently Suspended) Blink Intent Thread
> <https://groups.google.com/a/chromium.org/forum/#!msg/blink-dev/zlLSxQ9BA8Y/NLbg84m0EAAJ>
> Issue on Mozilla standards-positions
> <https://github.com/mozilla/standards-positions/issues/194>
> We've been using the GitHub repo for issue tracking but happy to take
> feedback (official or otherwise) in any form.
> Thank you!
> David
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