Version: 49.0.2623.87 (Official Build) (64-bit)
OS: Mac OS X

What steps will reproduce the problem?
(1) Open this page: https://jsfiddle.net/25L8nvdw/

What is the expected output?
- Two flags are rendered in single line.

What do you see instead?
- One flags are rendered, follow by line break and a blank.

---
This is a reduction from a real e-book content that explains that
a programming language can use emojis as part of a string literal.