302784 - Polling an applet causes the caret to misbehave

Status: RESOLVED WORKSFORME

(Core Graveyard :: Java: Live Connect, defect)

Description

[Wladimir Palant]

Go to the URL given above or open the testcase I will attach. Then try to enter
text in any text field, it can be in a different tab/window or it can even be
the address field of the browser. If you type fast you will notice that the
caret sometimes doesn't move making you type in the middle of the word instead
of its end. This problem disappears immediately if you close the testcase.

I found out that this happens because the site is polling an applet every 100
milliseconds. It doesn't matter what the applet does, in my testcase the method
returns immediately. It is only important that the method is called all the time.

Comment 1

[Wladimir Palant]

Attachment: JAR file for the testcase

Comment 2

[Wladimir Palant]

Attachment: Testcase

A page containing an applet, it calls document.applets.a.dummy() every 50 ms.
The method dummy() doesn't do anything at all, but it still causes the caret in
any text field to go weird - the caret sometimes fails to catch up with the
text you are typing.

Comment 3

[Wladimir Palant]

Attachment: Applet source code

Comment 4

[Wayne Mery (:wsmwk)]

is this reprodicible?

I don't see it, but I'm not sure I have set it up correctly

Comment 5

[Wladimir Palant]

It could be that this is only reproducible with Adblock Plus (or other content policy) installed. However, that's an old bug - very likely that it's long gone. I cannot test right now, don't have Java installed.

Comment 6

[Wayne Mery (:wsmwk)]

thanks.  WFM based on my testing, and reopen if you see otherwise.