I tried to edit a gallery on mobile and the UI was not responding. Console revealed the following errors.
[Error] TypeError: undefined is not a constructor (evaluating 'new ve.ui.MWMediaSearchWidget()') initialize (load.php:213:382) setManager (Anonymous Script 1 (line 110:509)) addWindows (Anonymous Script 1 (line 104:449)) getWindow (Anonymous Script 1 (line 100:1001)) (anonymous function) (load.php:629:687) fire (load.php:45:128) add (load.php:45:661) always (load.php:46:879) open (load.php:629:652) execute (load.php:536:161) execute (load.php:561:855) onEditButtonClick (load.php:633:468) emit (Anonymous Script 2 (line 18:849)) onClick (load.php:1023:872) (anonymous function) dispatch (load.php:65:992) handle (load.php:60:487) [Error] TypeError: undefined is not an object (evaluating 'this.searchWidget.getQuery') (anonymous function) (load.php:217:434) (anonymous function) (Anonymous Script 1 (line 97:188)) (anonymous function) (load.php:47:135) fire (load.php:45:128) add (load.php:45:661) (anonymous function) (load.php:47:98) each (load.php:5:240) (anonymous function) (load.php:47) Deferred (load.php:47:933) then (load.php:46:977) execute (Anonymous Script 1 (line 97:895)) setup (Anonymous Script 1 (line 112:615)) (anonymous function) (Anonymous Script 1 (line 102:119))
Browser: Safari
Page: https://en.m.wikipedia.org/wiki/Optical_microscope#/editor/22