Bug 261936

Summary:

REGRESSION (iOS 17): The textarea element URL encodes pasteboard data

Product:

WebKit

Reporter:

Ben Ubois <ben>

Component:

Forms

Assignee:

Nobody <webkit-unassigned>

Status:

RESOLVED FIXED

Severity:

Normal

CC:

akeerthi, ap, cdumez, ddp.bkdn, webkit-bug-importer, wenson_hsieh

Priority:

Keywords:

InRadar

Version:

Safari 17

Hardware:

Unspecified

OS:

Unspecified

Attachments:

Description	Flags
iOS 16.4 vs iOS 17.0 result	none

Description Ben Ubois 2023-09-21 22:42:24 PDT

The textarea element has an unexpected behavior where it URL encodes the data it sends to the pasteboard when a certain pattern is entered.

Any string followed by a colon, will result in the contents getting URL encoded when copied.

Video example: https://www.dropbox.com/scl/fi/scf8jxjyj6egg3r63wnz4/textarea.mov?rlkey=6qc0fcxa41en9xxvv7df3v382&dl=0

Steps:

1. Type the following string into a textarea: Hello:<
2. Copy the contents of the textarea
3. Paste the result somewhere

Expected:

The string Hello:< should be pasted

Actual:

The string hello:%3C is pasted

Comment 1 Alexey Proskuryakov 2023-09-24 15:49:36 PDT

I can reproduce this on iOS, but not on macOS. Quite weird indeed.

Comment 2 Ben Ubois 2023-09-24 16:05:23 PDT

It looks like this does not just affect textarea. Any text that matches this pattern gets URL encoded when copied in iOS Safari 17.

Comment 3 Alexey Proskuryakov 2023-09-25 10:01:08 PDT

Do you happen to know if this is new in iOS 17, and didn't affect earlier version?

Comment 4 Ben Ubois 2023-09-25 14:25:38 PDT

Created attachment 467854 [details]
iOS 16.4 vs iOS 17.0 result

It appears to be new as of iOS 17. I was able to test on 16.4 as well (the most recent of the simulator versions available) and the same issue was not present. 

In the attachment you can see the difference between 16.4 and 17 when copying and pasting from a <p> into a <textarea>. 

It appears that iOS 17 is down casing the pasted string as well.

Comment 5 Radar WebKit Bug Importer 2023-09-26 08:27:18 PDT

<rdar://problem/116056298>

Comment 6 Richard Robinson 2023-10-10 12:35:57 PDT

Pull request: https://github.com/WebKit/WebKit/pull/18902

Comment 7 EWS 2023-10-10 17:44:12 PDT

Committed 269178@main (a2225304ef16): <https://commits.webkit.org/269178@main>

Reviewed commits have been landed. Closing PR #18902 and removing active labels.

Comment 8 Alexey Proskuryakov 2023-11-15 12:28:47 PST

*** Bug 264867 has been marked as a duplicate of this bug. ***

Comment 9 Alexey Proskuryakov 2023-11-15 12:30:08 PST

This should be working correctly in current iOS 17.2 beta. Please comment if it does not.