July 2018
Intermediate to advanced
354 pages
8h 51m
English
Content preview from Progressive Web Application Development by Example
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Testing poor conditions using developer tools
The good news about testing for poor connectivity and average user devices is that it can be emulated. The Chrome, Edge, and FireFox developer tools all include some capacity to simulate slower connections and even lower powered devices.
Chrome has the best developed conditional testing tools. In the Developer Tools, you need to toggle the device toolbar. The keyboard shortcut is Ctrl + Shift + M and the button is located in the top left corner. It looks like a phone overlaying a tablet:
This changes the browser tab to render the page in a frame. The frame simulates the viewport of a target device. ...
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