Bug 138738

Summary: Memory Leaks by http://www.marca.com/
Product: WebKit Reporter: Asadullah Ansari <asadullah.ansari>
Component: WebCore Misc.Assignee: Nobody <webkit-unassigned>
Status: NEW ---    
Severity: Critical CC: mitz, mmaxfield
Priority: P2    
Version: 528+ (Nightly build)   
Hardware: All   
OS: All   
Attachments:
Description Flags
Real observations attached. none

Description Asadullah Ansari 2014-11-14 04:14:13 PST
Created attachment 241577 [details]
Real observations attached.

Memory leaks found by http://www.marca.com/

Steps to reproduced
1.	Open about://blank and observe memory used
2.	On same tab open  http://www.marca.com/  and observe memory
3.	again open about://blank page in new tab and close tab having http://www.marca.com/
4.	Now leave it for 1 hour or less or more than it
5.	Now you can observe , memory reserved by http://www.marca.com/ is not released 

please find the details  in attachment .
Comment 1 Asadullah Ansari 2014-11-14 05:35:25 PST
This issue is localized with simple test cases 

<!DOCTYPE html>
<html>
<head>
<style> 
@font-face {
    font-family: myFirstFont;
    src: url(http://fonts.gstatic.com/s/lato/v11/9k-RPmcnxYEPm8CNFsH2gg.woff)
}
 
div {
    font-family: myFirstFont;
}
</style>
</head>
<body>
 
<div>With CSS3, websites can finally use fonts other than the pre selected "web-safe" fonts.</div>
 
<p><b>Note:</b> Internet Explorer 8 and earlier, do not support the @font-face rule with the WOFF format (only support for EOT format).</p>
 
</body>
</html>


Leaks is due to CSS @font-face .
Comment 2 Asadullah Ansari 2014-11-17 21:43:34 PST
(In reply to comment #1)
> This issue is localized with simple test cases 
> 
> <!DOCTYPE html>
> <html>
> <head>
> <style> 
> @font-face {
>     font-family: myFirstFont;
>     src: url(http://fonts.gstatic.com/s/lato/v11/9k-RPmcnxYEPm8CNFsH2gg.woff)
> }
>  
> div {
>     font-family: myFirstFont;
> }
> </style>
> </head>
> <body>
>  
> <div>With CSS3, websites can finally use fonts other than the pre selected
> "web-safe" fonts.</div>
>  
> <p><b>Note:</b> Internet Explorer 8 and earlier, do not support the
> @font-face rule with the WOFF format (only support for EOT format).</p>
>  
> </body>
> </html>
> 
> 
> Leaks is due to CSS @font-face .


above use cases is one monor leaks but other places need to check.