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Testing On Mobile & Generating Mobile Page View Data

This lesson covers setting up Ngrok with Rails 7 in order to server the website through a tunnel. This lets you visit the website on a mobile device (Fig. 1) in order to see how the layout looks on mobile. Because Ngrok generates a unique URL every time, you'll need to allow list a regular expression for Ngrok. (Fig. 2)

Fig. 1 - The website on mobile.
Fig. 2 - Ngrok regular expression that just validates a string consiting of letters, numbers, and hyphens, and ending with .ngrok.io.

Additionally, this allows you to generate actual mobile device views, which can then be seen in the pie chart. (Fig. 3)

Fig. 3 - DonutChart showing page views. Donut charts can be made by replacing pie_chart() with donut_chart(), no other changes are required.

Exercises

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