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How do I identify all the long running javascript functions belonging to a given domain?

I need to identify which domain has a long running javascript function, how do I start?

1. Navigate to Synthetic Monitoring / Synthetic Aggregate Waterfall and set your time period and page name filters for the pages you are interested in

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2. Select the Function Tracing & Object Level detail tab

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3. Click the "Table View" icon at the top right of the screen (below the "Toggle Pie Charts" button)

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4. Enter the following string in the "Search" filter next to the table pagination control (above the table headers) where "example.com" is the domain you are interested in: 2:!N/A && 4:example.com && 5:>0.05

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Note: The above search string only returns rows where the function name is not "N/A", i.e. it is a function, the domain name matches the domain you are interested in and the duration is over 50 milliseconds