URL: https://www.google.com/amp/s/www.forbes.com/sites/insertcoin/2017/08/07/game-of-thrones-did-two-very-smart-things-in-last-nights-fantastic-episode/amp/

Browser / Version: Firefox Mobile Nightly 57.0a1 (2017-08-07) - Chrome UA
Operating System: LG G5 (Android 7.0) - Resolution 1440 x 2560 pixels (~554 ppi pixel density)
Tested Another Browser: Yes

Problem type: Design is broken
Description: Missing email icon when sharing an AMP document

Steps to Reproduce:

1. Navigate to: https://www.google.com/amp/s/www.forbes.com/sites/insertcoin/2017/08/07/game-of-thrones-did-two-very-smart-things-in-last-nights-fantastic-episode/amp/.
2. Tap the “Share” button.
3. Observe first icon.

Expected Behavior:
Email icon is displayed.

Actual Behavior:
A black icon is displayed.

Note:

1. Not reproducible on Chrome (Mobile) 59.0.3071.125, on Firefox 54.0.1 Release and Firefox Nightly 57.0a1 (2017-08-02) without Chrome UA.
2. Screenshot attached.

Watchers:
@softvision-sergiulogigan
@softvision-oana-arbuzov

sv; gs

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