TypeError: undefined is not an object (evaluating 'datum.firstYear.value')[edit]
Hello, there is an error in this graph triggering around 142 errors. I know little about how this graph works, but it seems to relate to one of the formulaes. User:TheDJ any idea what's happening here and do you know how to fix it? Jdlrobson (talk) 00:35, 11 March 2021 (UTC)[reply]
Mozilla/5.0 (iPhone; CPU iPhone OS 14_4 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/14.0.3 Mobile/15E148 Safari/604.1 user agent on Banana is an example where this error occurs. Does seem to be iOS specific. Jdlrobson (talk) 00:36, 11 March 2021 (UTC)[reply]
I can replicate this in Firefox by dragging the timeline at the bottom of the graph in Landline. I've poked at the sandbox but without much luck. User:Milimetric (WMF), User:Jseddon (WMF) any idea what's going wrong here? Jon (WMF) (talk) 16:56, 26 March 2021 (UTC)[reply]
