id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc	blockedby	blocking	notify_on_close	platform	project
327	Log stops updating beyond 2 Mbyte size	Tom Goddard	Tom Goddard	"The Log panel and file history html panels stop updating or display nothing if an attempt is made to show more than 2 Mbytes of html content.  It is easy to exceed this limit if images are included since they are inlined in the html (using <img src=""data:image/png;base64,[data]"">).

This is a bug in Qt 5.6.0 WebEngineView setContent() and setHtml() methods that can only handle 2 Mbytes of content.  This comes from the Chromium backend used by Qt 5.6 which limits URL size to 2 Mbytes.  Qt converts the html content to a url (like ""data:text/html,..."") for passing to the rendering process.

This is Qt bug 53414

  https://bugreports.qt.io/browse/QTBUG-53414

The owner of that bug will look at using shared memory to pass html content instead of a URL.
"	defect	closed	major		Logging		fixed						all	ChimeraX