How to see which JS file governing this click-to-expand content on a website?
I'm looking at this url. The original display is
After I click on the plus sign,
I see that <section> changes to <section expand>, and aria-expanded="false" changes to aria-expanded="true". Could you please elaborate on how to determine which JS file governs this behavior?
I can see many JS files in section "Event Listeners" but could not figure out?
I had a look at the page. From your screenshot you can see there is only one of the event listeners on "click" that applies to that specific header element - amp-accordion.js.
This name makes sense as it is an accordion effect you're looking at.
Inside the .js file referenced there are a number of sections governing the accordion effect. If you'd like to investigate further I recommend searching for the term "accordion" in the js source - CTRL+F, "accordion".
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