If you check the match history site for NA, all you will see is a white box and nothing will load. This has been broken for months (maybe years?) now. Here is a link to a thread made about 9 months ago.
http://boards.na.leagueoflegends.com/en/c/bug-report/dYaLBbZQ-na-match-history-not-working
Please fix this. I want to find a summoner I played with a long time ago in a normal game.
I have been experiencing the same issue for about a month across two computers and two browsers (per computer). I thought I was missing some plug-in at first, but this post along with several other through the months seem to point at a server issue. Hard to tell though, as no Rioter has commented on the threads to shed light on it. Hope this one gets a response. The issue is getting 
ing
This has been a problem on and off. My Chrome extension may fix your issue. Original post. On the post you link to, STAR GENERAL has replied with the same fix.
Some folks are experiencing a 403 issue with AWS, in which case this extension won't fix the issue.
