[wp-trac] [WordPress Trac] #32305: Emoji script is producing errors on pages with SVG content

[WordPress Trac]

#32305: Emoji script is producing errors on pages with SVG content
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 Reporter:  martynasma             |       Owner:  azaozz
     Type:  defect (bug)           |      Status:  reopened
 Priority:  normal                 |   Milestone:  4.2.3
Component:  Formatting             |     Version:  4.2.2
 Severity:  normal                 |  Resolution:
 Keywords:  fixed-major has-patch  |     Focuses:  javascript
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Comment (by harmr):

 This issue affects my free mapping plugin
 "[https://wordpress.org/extend/plugins/leaflet-maps-marker/stats/ Leaflet
 Maps Marker]" as well as the pro version "[https://www.mapsmarker.com Maps
 Marker Pro]".

 I had some reports from users lately saying that IE suddenly crashed when
 viewing Google Maps on backend. I was not sure what could have caused this
 until I found [https://wordpress.org/support/topic/version-422-wp-emoji-
 releaseminjs-error#post-6926976 this related comment] which states that
 Google Maps API loading was blocked as a result. Anyway it is difficult to
 reproduce this issue on my server - what I know for sure is that each time
 a "layer map" from my plugin is shown, the following javascript errors are
 produced which I see via debug panel/javascript tab:

 Object does not support this property or method "indexOf"
 https://localhost/wp-includes/js/wp-emoji-release.min.js?ver=4.2.2 line 4

 it would really be great if this issue could be solved with 4.2.3

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Ticket URL: <https://core.trac.wordpress.org/ticket/32305#comment:14>
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