Bug 161880

Summary:

With a WKWebView's scroll view, a negative content offset y value is reset to 0 if the web view's frame height is increased.

Product:

WebKit

Reporter:

gchatz

Component:

New Bugs

Assignee:

Nobody <webkit-unassigned>

Status:

NEW

Severity:

Normal

CC:

jonlee, simon.fraser

Priority:

Keywords:

InRadar

Version:

WebKit Nightly Build

Hardware:

iPhone / iPad

OS:

iOS 9.3

Attachments:

Description	Flags
Test app	none

gchatz

Reported 2016-09-12 15:56:31 PDT

Created attachment 288628 [details] Test app Summary: With a WKWebView's scroll view, a negative content offset y value is reset to 0 if the web view's frame height is increased. Steps to Reproduce: 1. Set content offset of a WKWebView to a negative value. 2. Set the WKWebView's height to a bigger value. 3. Observe the new content offset of the web view. (See test app) Expected Results: The content offset should stay negative. Actual Results: The content offset is changed to 0. Version: Since at least iOS 9. Present in iOS 10. Configuration: iPhones and iPads

Attachments
Test app (27.61 KB, application/zip) 2016-09-12 15:56 PDT, gchatz	no flags	Details
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