Notes:
- the issue is present only on mobile (cswiki wmf.29 was tested)
- the Console errors are more frequently present for suggested articles that have Math formulas/symbols; sometime the error 503 is present, e.g. for the following suggested articler https://cs.m.wikipedia.org/w/index.php?title=Funkce_%28matematika%29&gesuggestededit=1#/editor/all -this request will display 503 error: https://wikimedia.org/api/rest_v1/media/math/render/svg/1c4466be31dc1d05273fb6c4e7847f40f7256b08
Steps to reproduce:
- on mobile cswiki wmf.29 Homepage, select "Add an image to an article section" task
- click on any of the suggested articles
- when the guided tour is loaded (https://cs.m.wikipedia.org/w/index.php?title=Hexagram&gesuggestededit=1#/editor/all), the Console will display several errors:
Uncaught TypeError: Cannot read properties of undefined (reading '0') at RecommendedSectionImageToolbarDialog.updateCta ( at RecommendedSectionImageToolbarDialog.afterSetupProcess
Uncaught TypeError: Cannot read properties of null (reading 'context') at eval (eval at indirectEval at Object.fire (eval at indirectEval at ve.init.mw.ArticleTarget.surfaceReady (eval at indirectEval at ve.init.mw.MobileArticleTarget.surfaceReady (eval at indirectEval at StructuredTaskArticleTarget.surfaceReady at eval (eval at indirectEval
Uncaught TypeError: Cannot read properties of null (reading 'getModel')