UserAgent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_6) AppleWebKit/602.4.8 (KHTML, like Gecko) Version/10.0.3 Safari/602.4.8

Steps to reproduce the problem:
1. 	New Chrome window
2.	Connect to the localhost running the internal app
3.	Toggle device toolbar to enable emulation on iPhone 6 Plus
4.     Log into the app and navigate to a multi-select dropdown.
5.	Attempt to select values from the dropdown.

What is the expected behavior?
The selected options are expected to register as being selected.

What went wrong?
When running with Selenium, the desired options appear as if they are selected. The odd thing is that, at the code level, those selected options are not registered as selected. Within selenium, after selecting the options, it registers that those options were indeed selected while they actually are not registered as selected.

Did this work before? N/A 

Chrome version: 57.0.2987.133  Channel: n/a
OS Version: OS X 10.11.6
Flash Version: 25.0.0.148 

This issue is seen while running an internal app built to run on an iPhone. The automated testing is conducted by running the app on a mac (as a localhost) and connecting to the app through Chrome while setting Chrome up to simulate an iPhone.

The Select class is being used to select options on both single-select and multi-select dropdowns. When the selenium is running against this app and not running in the emulator mode, the multi-select dropdowns are selected successfully.