Chrome Version       : 58.0.3029.110 (64-bit)
URLs (if applicable) : zhihu.com (register + log in + and get some feeds)
OS version               : 10.12.5 (16F73)
Behavior in Safari (if applicable): read aloud the *selected* text
Behavior in Firefox (if applicable): do a copy of the text, then read aloud whatever is *copied*

What steps will reproduce the problem?
(1) Enable by Setting -> Accessibility -> Speech, tick "Speak selected text when the key is pressed", (select a Chinese language may help better)
(2) Select some text in chrome, specifically in zhihu.com
(3) Press Command + Esc

What is the expected result?

This is feature in Mac which can be enable by Setting -> Accessibility -> Speech, tick "Speak selected text when the key is pressed". Then when the key (default to Command + Esc) is pressed, the system will read aloud the selected test.

In Chrome copy the select text and press Command + Esc should read aloud the *selected* text.

What happens instead?

In Chrome, it actually copies the text then read whatever is copied aloud, which is fine for some website, while for sites that has modified behavior for copying (i.e. adding copyright information, disable copy), it reads copied text instead of selected, which means:
- It's reading copyright information
- It's reading nothing as websites disables copy

Mac OS put this "Speak selected text" feature in Accessibility, to help people with reading problems, while in Chrome, it's not helpful as people needs accessibility have to hear extra information or they can't hear anything!

P.S. This feature works correctly in Safari (reading SELECTED text), and it can also be triggered by select -> right click -> Speech -> Start Speaking. While Start Speaking in Chrome worked before and now it's not reading anything.