Bug 31324

Summary:

Iframe overlap testing fails to detect overlapping objects in the same layer

Product:

WebKit

Reporter:

mitz

Component:

Layout and Rendering

Assignee:

Nobody <webkit-unassigned>

Status:

NEW

Severity:

Normal

CC:

ahmad.saleem792, simon.fraser

Priority:

Keywords:

BrowserCompat

Version:

528+ (Nightly build)

Hardware:

All

OS:

All

Attachments:

Description	Flags
Test case	none
Safari vs Other browsers	none

mitz

Reported 2009-11-10 16:20:17 PST

Iframes use the OverlapTestRequest mechanism to detect when they are overlapped and disable copy-on-scroll in that case. The mechanism detects overlapping layers, but fails to detect overlapping objects in the same layer as the iframe. The attached test case demonstrates the bug.

Attachments
Test case (293 bytes, text/html) 2009-11-10 16:21 PST, mitz	no flags	Details
Safari vs Other browsers (287.98 KB, image/png) 2024-05-17 11:14 PDT, Ahmad Saleem	no flags	Details
View All Add attachment proposed patch, testcase, etc.

mitz

Comment 1 2009-11-10 16:21:51 PST

Created attachment 42906 [details] Test case

Ahmad Saleem

Comment 2 2024-05-17 11:14:40 PDT

Created attachment 471434 [details] Safari vs Other browsers It is still reproducible in Safari Technology Preview 194.

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