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ArcGIS online map: cannot edit existing attribute expression. Bug?

Question asked by azendel on Aug 23, 2017
Latest reply on Aug 25, 2017 by MidnightYell2003

This weird behavior is occurring in both Chrome and Internet Explorer while trying to build a URL that will be displayed in a pop up for an AGO feature layer.  I've successfully started the expression by using:

 

var myURL = 'https://www.google.com/maps/place/';
myURL = myURL + $feature.STOP_NAME;
return myURL;

 

These initial lines of code are producing the results that I was expecting, as shown in the popup below:

 

But when I attempt to edit my expression, by double-clicking "URL" or highlighting "URL" and clicking the "Configure expression" (gear) button to the right, the expression "title" and the expression window are totally blank. Example:

 

So I can't continue to edit and refine my URL that will be built using two additional fields on the  $feature.  Am I missing something?  Or is this a bug?

 

As a workaround, I'm building my expression in notepad and will paste the final working version into the expression box.  But this will make it problematic to edit the URL at a later date.

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