What is the cause of a bug reported in Tumblr that some keys cannot be entered for some reason?

Foone, an engineer and old computer collector, reported on Twitter that he couldn't accept E and W inputs when entering text on his blog service Tumblr.

According to foone, not only E and W, but also L and period can no longer be entered. There is nothing wrong with the keyboard, and other apps and services can input without problems, so it seems that there is a problem with Tumblr, foone said.

Furthermore, although I couldn't input by touching the key, after a while after pressing and holding the key, multiple characters suddenly appeared.

The probable cause was the shortcut key set in Tumblr. Tumblr has shortcut keys that can be used on the dashboard, such as 'J: Next post' and 'K: Previous post', and if the time from clicking a new image post to entering text is too short , Foone points out that the input will be strange because the JavaScript that switches between enabling and disabling shortcut keys will not work properly. However, it is unknown which shortcut key E and W are in conflict with.

Javie A., who is involved in the development of Tumblr, acknowledged foone's point, saying, 'Maybe the text editor conflicted with something that handles the timeline update while loading, and the key assignment was wrong.' I said the problem has been fixed.

in Web Service, Posted by log1i_yk