Steps to Reproduce
Visit https://en.m.wikipedia.org/wiki/Astragalus_pomonensis
Note that the appearance of the table of contents pushes down the remaining content.
In comparison, https://en.m.wikipedia.org/wiki/Inflorescence works fine.
MobileFormatter is supposed to add a placeholder for table of contents (MFTOC) via the AddMobileTocTransform - to reserve space for table of contents.
The logic seems to be linked to whether desktop shows a table of content or not. In the first example, no table of contents is needed since the page is so simple. In the latter, it is needed.
Expected Results
- The table of contents placeholder should be present in HTML for all mobile pages where the table of contents is rendered via JavaScript
Actual Results
- The placeholder is not present so when the table of contents is inserted it pushes all content down
Environments Observed
Testing Environment for QA
This should be tested on the beta cluster
- No table of contents should appear on https://en.wikipedia.beta.wmflabs.org/wiki/Selenium_Echo_mention_test_0.503982997665737
- On https://en.m.wikipedia.beta.wmflabs.org/wiki/Ronald_Reagan scroll to the table of contents. Refresh the page. The table of contents should not push content down the page.
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OS Version
Device Model
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