October 2017
Intermediate to advanced
370 pages
8h 57m
English
Content preview from AMP: Building Accelerated Mobile Pages
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Transport configuration
We can also configure the transport mode of the analytics request by adding the transport object. There are three transport modes, all enabled by default. They're listed in order of precedence here:
- beacon: Uses navigator.sendBeacon to make a POST request with an empty body
- xhrpost: Uses XMLHttpRequest to make a POST request with an empty body
- image: Generates an img tag that makes a GET request
In the following example configuration, only xhrpost and image are enabled. If neither is supported by the client, then no analytics request would be made:
"transport": { "beacon": false, "xhrpost": true, "image": true}
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