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cramforce/Firefox UAs Secret

Created February 22, 2017 15:05
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Firefox UAs
We are seeing this Firefox bug (or a variant of it) get triggered https://bugzilla.mozilla.org/show_bug.cgi?id=548397
This showed up in our error reporting and the stack trace format is clearly a Gecko stack trace.
Example URL https://m-wikihow-com.cdn.ampproject.org/v/m.wikihow.com/Dress-for-Skiing?amp=1&amp_js_v=7 embedded as an iframe on https://www.google.com
The UAs are sometimes:
Mozilla/5.0 (Linux; Android 6.0.1; SAMSUNG SM-G920F Build/MMB29K) AppleWebKit/537.36 (KHTML, like Gecko) SamsungBrowser/4.0 Chrome/44.0.2403.133 Mobile Safari/537.36"
And more often:
Mozilla/5.0 (iPhone; CPU iPhone OS 9_1 like Mac OS X) AppleWebKit/601.1.46 (KHTML, like Gecko) Version/9.0 Mobile/13B143 Safari/601.1"
@karlcow
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karlcow commented Feb 27, 2017

Another weird phenomenon
https://chuttenblog.wordpress.com/2017/02/23/data-science-is-hard-anomalies-and-what-to-do-about-them/

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