WordPress's Emoji Replacement Scheme Incorrectly Converts Glyphs, and Should Also Have an Off Switch

[paulkafasis]

In recent WP versions (4.9.4, 4.9.3, maybe others), WP does some sort of conversion of emoji glyphs. Rather than using the OS's emoji, it seems a WP-based image is substituted. Two things:

1) Most importantly, this replacement is buggy. Something like ↩︎ is a two-part glyph, with the second part being a modifier that essentially says “Do NOT replace with emoji”. However, WP replaces the first part, and then renders the second part with an unknown glyph box. The end result is obviously broken.

2) Even if/when this is fixed, this should be a setting site owners can toggle off if they so choose. There are now plugins for this, but it should be part of WP itself.

[paulkafasis]

This is how ↩︎ should render.

[paulkafasis]

This is the broken way WordPress 4.9.4 renders the glyph - an emoji, and an unknown box.

[redsweater]

I confirmed that this bug is due to erroneous behavior of the twemoji.js script that WordPress bundles. Newer revisions to this script, for example the one here:

​https://github.com/twitter/twemoji/blob/gh-pages/twemoji.js

Contain special consideration for the character in question, and leave examples like the one @paulkafasis cites in tact.

In short: the errenous replacement will be resolved by merging in a newer twemoji.js. The request to offer a switch to disable the Emoji replacement altogether should probably be opened as a separate issue.

[Otshelnik-Fm]

🤠 - this emoji (and more others) can not be downloaded from the ​https://s.w.org/images/core/emoji/ as .svg file
Bug in WordPress 4.9.3, 4.9.4

On 4.7.9 - works

upd: screens ​https://ru.wordpress.org/support/topic/%d0%bf%d0%be%d0%bb%d0%be%d0%bc%d0%b0%d0%bb%d0%b8%d1%81%d1%8c-emoji/
upd2:see bug in firefox 58.0.2 (64-bit). In chrome, edge - works.

[pento]

This issue has been fixed by updates to the Twemoji library.

There's currently no plan to add a toggle for Twemoji support: installing a plugin is the appropriate method to turn it off.