https://bugs.winehq.org/show_bug.cgi?id=52727 --- Comment #1 from Sergey Bychkow <sergey.bychkow(a)gmail.com> --- Really the problem is with pure browser, even without embedding: $ wine iexplore.exe file://Z:/Users/..../test1.html This shows different result on Wine and Windows. File test1.html is: <html> <body> <script> document.write('window.Precious: '); var obj1 = window.Precious; document.write(obj1); document.write('<br>'); document.write('window.external: '); var obj2 = window.external; document.write(obj2); document.write('<br>'); document.write('window.external.MyPrecious: '); var obj3 = window.external.MyPrecious; document.write(obj3); document.write('<br>'); document.write('End of script'); </script> </body> </html> -- Do not reply to this email, post in Bugzilla using the above URL to reply. You are receiving this mail because: You are watching all bug changes.