1286117 - [e10s][TSF] Composition string may appear in floating window at top-left of the screen when you remove all string from tweet field of twitter.com and restart composition string

Status: RESOLVED WORKSFORME

(Core :: Widget: Win32, defect, P2)

Description

[Masayuki Nakano [:masayuki] (he/him)(JST, +0900)]

STR:

1. Input something into tweet field of twitter.com
2. Remove all characters from the tweet field by Backspace key.
3. Type something with IME.

Then, sometimes I see composition string in a floating window shown at top-left of the screen. I'm not sure the exact STR for this bug, though.

We should investigate what twitter.com do after removing a character with Backspace key.

Comment 1

[Masayuki Nakano [:masayuki] (he/him)(JST, +0900)]

This *might* be related to bug 1275930.

Comment 2

[Mike Conley (:mconley) (:⚙️)]

Hey Masayuki,

Is this high priority, in your opinion?

Comment 3

[Masayuki Nakano [:masayuki] (he/him)(JST, +0900)]

Yes, it is. But I'm still not sure how to reproduce this nor what twitter.com does. So, I'd like to give high priority to this, but if we don't find these issues, I have a lot of bugs which should be fixed as soon as possible.

Comment 4

[Masayuki Nakano [:masayuki] (he/him)(JST, +0900)]

After fixing bug 1224994, I don't see this bug not so many times (I see this bug really rarely). Now, this bug should be lower priority.　(Although, twitter.com might have changed something.)

Comment 5

[Masayuki Nakano [:masayuki] (he/him)(JST, +0900)]

I still sometimes see this bug with following steps:

1. Type "@foobar" and something additional words.
2. Ensure open IME.
3. Remove typed characters by Backspace.
4. All characters are removed, type a character with IME.

Then, I sometimes see suggest window of IME at left-top of the screen. And when I tested this continuously, I see it at outside the editor but not at left-top of the screen. And sometimes first character of composition string is committed accidentally.

Comment 6

[Masayuki Nakano [:masayuki] (he/him)(JST, +0900)]

At investigating bug 1347809, I see that typing Backspace key sometimes causes blurring the focus (perhaps, actually, it must occur always). So, when the editor doesn't have focus, it could cause this bug. However, I don't have any idea why IME is enabled in such case.

Comment 7

[Masayuki Nakano [:masayuki] (he/him)(JST, +0900)]

I don't see this bug anymore. Although we still have a bug actually...