It works perfectly with IE11 and Firefox, and horrible with Chrome 38.
I noticed that the site works smooth while loading, and suddenly gets slow as soon as this appears in the console:
And in the network tab, it does as soon as this js finishes loading:
Tried same link as posted originally - Opera just can't open this link. After saved to disk, can be opened in Opera without problem. No third-party antivirus or similar cr*p here, Win Defender is active. Opera dev version.
Looking at traffic with fiddler, it seems that Opera requests PDF both in full (first request) and then in chunks and somehow it doesn't do it properly, at least server thinks so:
(part of Opera second request)
416 Requested Range Not Satisfiable
Looks like bug. I don't think that this behavior depends on PDF size (I just lately looked at quite big PDFs - 11MB or so, although performance was very poor), but on some server handling nuances of Opera requests.
Does Opera support activeX?
Nope, it's an IE only thing AFAIK.
I think microsoft and office online use activeX
I don't think so. Maybe with IE but not with other browsers.
so, can I run them within Opera?
Yep. I just tried an it worked fine.
I do not succeed in doing this, but maybe I missed something?
What exactly gone wrong?
BTW, what OS?
So, this means all java based websites will be unreachable by Opera?
Nope, but their java applet will no longer work in Opera, Chrome, Vivaldi and all Chromium based browsers with current versions of Chromium.
Also, Java plugin is being discontinued By Oracle. It means that at a certain point until the end of this year, Java will probably stop working on all browsers.
IMHO, sooner or later plugins will be part of the past.
I found out how.
There is a software on windows to manage edge favorites, here:
With it you can export edge favorites to a html file, and then import this file in Opera...