UserAgent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/64.0.3282.119 Safari/537.36

Steps to reproduce the problem:
1. Go to http://iopscience.iop.org/journal/0266-5611/page/Special%20Issue%20on%20Generalized%20Radon%20Transforms%20and%20Applications%20in%20Tomography
2. Bookmark the page
3. Edit the bookmark
4. Copy the URL from the bookmark
5. Paste it

What is the expected behavior?
http://iopscience.iop.org/journal/0266-5611/page/Special%20Issue%20on%20Generalized%20Radon%20Transforms%20and%20Applications%20in%20Tomography

What went wrong?
iopscience.iop.org/journal/0266-5611/page/Special Issue on Generalized Radon Transforms and Applications in Tomography

Note that http is missing and spaces are not encoded.

Did this work before? N/A 

Chrome version: 64.0.3282.119  Channel: stable
OS Version: 10.0
Flash Version: 

I know that a similar mechanism is used when copying URLs from the omnibox: in that case, http:// is not displayed, either, but is part of the result in the clipboard. Probably, copying from the "edit bookmark" dialog should use the same mechanism.