Safari initial popstate causes issues with plugins

[henriyli]

At which URL did you encounter the problem?

http://dev.finto.fi/yso/fi/page/p22770

What steps will reproduce the problem?

1. Go to page and wait for a second.

What is the expected output? What do you see instead?

You'll see the Finna-plugin load below the concept information box. Using Safari (for example on an ipad) the page will reload by ajax and the widget disappears. This happens because the Safari fires an popstate event on the initial page load. Mozilla, Firefox, and IE do not do this.

What browser did you use? (eg. Firefox, Chrome, Safari, Internet explorer)

Safari on an iPad air (iOs 8.3) on BrowserStack