PopupTemplate fieldInfo formatting weird behaviour

[ShakilChoudhury]

Why does the first reference to myFieldName in the content work fine, outputting "431467" but the second reference in the href of the link output as "431,467", which breaks the link? On version 4.12.

          popupTemplate:{
            title: "My Popup",
            content:"{myFieldName} <a href='https://mysite.co.uk/PDFs/{myFieldName}.pdf'>View Order</a>",
            fieldInfos:[
              {
                fieldName: "myFieldName",
                format: {
                  places:0,
                  digitSeparator: false
                }
              }
            ]
          }‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

[ShakilChoudhury]

The formatting only breaks when the field is added to the href attribute, if I add it to the class attribute it works fine.

[LizEidsness]

I think it's a bug.  You could try a workaround of making an expression that converts value to string and try that?  I think it's Text($feature.myFieldName).

https://developers.arcgis.com/javascript/latest/api-reference/esri-PopupTemplate.html#expressionInfo...