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I have an Excel add-in in AppSource. It has a bug: sometimes, when the add-in is launched via its button on Ribbon for the first time, the first page cannot be well loaded (thus there is just a blanc taskpane). Clicking on the button once again loads well the add-in.

I want to see how files are loaded while the add-in is being launched for the first time, and follow this method to debug:

Then, open the Office application and sideload your add-in. Right-click the add-in and you should see an Inspect Element option in the context menu. Select that option and it will pop the Inspector, where you can set breakpoints and debug your add-in.

The problem of this approach is that we can only trigger the "Inspect Element" when the loading has finished. Then in the Network tab, we see all the files have already been loaded with no further information (e.g., time, size). This approach does not allow me to inspect the loading from the beginning:

enter image description here

Does anyone have a better way or better tool?

SoftTimur
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1 Answers1

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Have you tried typing window.location.reload() in the Console and pressing enter? At least on Windows, I have found this to be a very useful debugging technique for diagnosing issues that happen during the taskpane launch -- and it feels like it should force the JS files to be reloaded as well, for the scenario you're looking for.

Michael Zlatkovsky - Microsoft
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  • Hello Michael, `window.location.reload()` does reload the add-in and JS files. But it is still not the first-time launching. Whereas in Windows, if we open `F12` before the add-in, launch the add-in, then keep refreshing F12, then choose the add-in, we can inspect the information of the first-time launching. – SoftTimur Aug 19 '19 at 07:58
  • And on my side, the first-time launching does have subtle difference from the second/third time launching. For exemple, the welcome page cannot be well loaded for the first time, but a second-time launching amends that. – SoftTimur Aug 19 '19 at 08:02