Change #1269080 had a related patch set uploaded (by LWatson; author: LWatson):

[mediawiki/extensions/ReaderExperiments@master] Share Highlights: retrieve lead image from PageImages API

https://gerrit.wikimedia.org/r/1269080

Notes for QA

1. Navigate to a Wikipedia article that has a lead image and enable Minerva skin
2. Select text → share button appears → tap it → share dialog opens
3. Verify the lead image appears in the quote card (9:16 aspect ratio)
4. Check DevTools Network tab: API call to ?action=query&prop=pageimages is made
5. Test an article with no images: quote card shows 1:1 aspect ratio, no image shown
6. Test small image fallback: open an article whose lead image is less than 500px (minimum number not yet decided) → no image shown in quote card

In T421133#11802706, @lwatson wrote:

Notes for QA

1. Navigate to a Wikipedia article that has a lead image and enable Minerva skin

?useskin=minerva&useformat=mobile&shareHighlight=1 should be appended to the URL.

+2ed. This patch depends on https://gerrit.wikimedia.org/r/c/mediawiki/extensions/ReaderExperiments/+/1268983, so it'll be merged as soon as the parent is.

Change #1269080 merged by jenkins-bot:

[mediawiki/extensions/ReaderExperiments@master] Share Highlight: retrieve lead image from PageImages API

https://gerrit.wikimedia.org/r/1269080

Thank you, @lwatson and @mfossati for the QA instructions!

Testing on enwiki beta - the following issues have been found. It seems that those issues might be specific to the beta cluster environment. I encountered the following beta cluster limitations when testing

• beta cluster doesn't have an absolute match for all prod templates, e.g. imported articles often display Lua script errors or red links in the templates
• Images on enwiki beta may be different versions of images comparing to production. I checked for such the articles on beta cluster with unmodified leading images.

TEST RESULTS (based on Notes for QA in https://phabricator.wikimedia.org/T421133#11802706)

Navigate to a Wikipedia article that has a lead image and enable Minerva skin	Using: ?useskin=minerva&useformat=mobile&shareHighlight=1
✅ Select text → share button appears → tap it → share dialog opens	no issues https://en.wikipedia.beta.wmcloud.org/wiki/Canada_lynx?useskin=minerva&useformat=mobile&shareHighlight=1useskin=minerva&useformat=mobile&shareHighlight=1
✅ Verify the lead image appears in the quote card (9:16 aspect ratio)	From the above highlighting:
✅ Check DevTools Network tab: API call to ?action=query&prop=pageimages is made	GET https://en.wikipedia.beta.wmcloud.org/w/api.php?action=query&format=json&prop=pageimages&titles=Canada_lynx&pithumbsize=960[...]
✅ Test an article with no images: quote card shows 1:1 aspect ratio, no image shown	https://en.wikipedia.beta.wmcloud.org/wiki/Favilla_Guitars?useskin=minerva&useformat=mobile&shareHighlight=1
✅ Test small image fallback: open an article whose lead image is less than 500px (minimum number not yet decided) → no image shown in quote card	https://en.wikipedia.beta.wmcloud.org/wiki/Leopard_cat?useskin=minerva&useformat=mobile&shareHighlight=1

Thank you @Etonkovidova , moving to signoff.

Testing notes to consider before Sign-off: beta cluster has quite a bit of "noise" that I mentioned in my comment above. Even confirming "happy paths" was somewhat challenging. I filed T423304: [QA task] shareHighlight testing where I listed the issues that I observed while testing shareHighlight.