topic Re: Using Attribute Expressions to Add URL with an A refferer in ArcGIS Online Questions

Using Attribute Expressions to Add URL with an A refferer

MackenzieBetz5 — Wed, 02 Apr 2025 19:31:11 GMT

I'm trying to add a URL to a pop up that uses one of the attribute fields as part of the URL. Which I can do with a custom attribute expression using arcade. However, to get it to go to the correct URL I need to include the <a href for the URL, for example, this works:

return "https://assessor.stlouiscountymo.gov/realestate/AsmtInfo.aspx?Locator="+$feature.LOCATOR

BUT I need the URL to include the <a> refferer to actually be able to get to the website with the information - this is a security feature of the site to prevent data-scrubbing of our parcels. I would think the syntax for arcade for that would be:

However, I get an error that the '<' is an "unexpected token" - what am I doing wrong here? I know I've gotten it to work in the past, but I changed it and did not save, so I don't have my old work. Anybody see an issue with the syntax? How do I get arcade to recognize the HTML anchor?

I'm not an HTML coder AT ALL, so if I'm referring to things wrong, please let me know!

Re: Using Attribute Expressions to Add URL with an A refferer

__JackCharde__ — Wed, 02 Apr 2025 21:09:27 GMT

In your Arcade script use a template literal (string enclosed in backticks) with your feature attribute in a placeholder (the ${} syntax). Your return should look like this:

return `<a href="https://assessor.stlouiscountymo.gov/realestate/AsmtInfo.aspx?Locator=${$feature.LOCATOR}">Click Here</a>`

Re: Using Attribute Expressions to Add URL with an A refferer

MackenzieBetz5 — Thu, 03 Apr 2025 16:19:06 GMT

Thank you! However, when I try that, this is the output I get:

Re: Using Attribute Expressions to Add URL with an A refferer

__JackCharde__ — Sat, 05 Apr 2025 01:40:15 GMT

Are you calculating a new/temporary field on this dataset? Are you using a popup with multiple content types? I'm thinking you may need to put this in a text content type so the html renders properly.