Bug 243131

Summary:	document.close, scripts in document.write, and later-defined onload event handlers
Product:	WebKit	Reporter:	Ahmad Saleem <ahmad.saleem792>
Component:	Page Loading	Assignee:	Nobody <webkit-unassigned>
Status:	NEW ---
Severity:	Normal	CC:	ap, beidson, bfulgham, cdumez, karlcow, rniwa, webkit-bug-importer
Priority:	P2	Keywords:	BrowserCompat, InRadar
Version:	Safari 15
Hardware:	Mac (Apple Silicon)
OS:	macOS 12
URL:	https://bug204497.bmoattachments.org/attachment.cgi?id=267050

Description Ahmad Saleem 2022-07-23 03:22:28 PDT

Hi Team,

Another test case, which I found in Mozilla Bugzilla to see where for onload Safari behavior is different from other browsers:

*** STEPS TO REPRODUCE ***

1 - Load test URL - https://bug204497.bmoattachments.org/attachment.cgi?id=

>>>> ACTUAL RESULT:

Safari should onAlert dialog window with 777 in it and then after dismissing, it loads body with 'y' in it.

>>>> EXPECTED RESULT:

Firefox Nightly 104 and Chrome Canary 105 does not show 777 dialog window and just load body with 'y' in it.

As per Mozilla bug report - it should show 'Alert' window but I am not sure on the web-specs here but since Safari behavior is different (whether aligned with web-spec or not), I just wanted to raise this bug report.

Thanks

Comment 1 Ahmad Saleem 2022-07-23 03:23:46 PDT

For some reason - test URL in Description / Comment 0 is broken, please use from URL field or below:

Link - https://bug204497.bmoattachments.org/attachment.cgi?id=267050

Comment 2 Sam Sneddon [:gsnedders] 2022-07-23 08:53:13 PDT

(In reply to Ahmad Saleem from comment #0)
> As per Mozilla bug report - it should show 'Alert' window but I am not sure
> on the web-specs here but since Safari behavior is different (whether
> aligned with web-spec or not), I just wanted to raise this bug report.

Pretty sure Firefox and Chrome are right v. HTML today.

That said, I suspect this is more about when HTML says to spin the event loop and when document.close stops parsing than anything else.

Comment 3 Radar WebKit Bug Importer 2022-07-23 10:34:18 PDT

<rdar://problem/97487338>