Safari 9.1 El Capitan - Crash on localize

[kevinLB]

Description

Actually we have a crash on old Safari browser (9.1) on El Capitan OS.
The localize webcomponents seems buggy on it and crash badly.

Expected outcome

Everything is translated according to chrome / FF behaviors
http://www.francetvinfo.fr/elections/resultats/export/histograms.html#lang=en

Actual outcome

Cause webcomponent crash because of localize on Safari 9.1 (El capitan).
http://www.francetvinfo.fr/elections/resultats/export/histograms.html#lang=en

Steps to reproduce

Try to use "this.localize" for our translations.
See errors on the browser console.

Browsers Affected

• Chrome
• Firefox
• Safari 9
• Safari 8
• Safari 7
• Edge
• IE 11
• IE 10

[dlockhart]

@kevinLB Does the error you're seeing look something like this one:

TypeError: undefined is not an object (evaluating 'proto._localizationCache.messages = {}')

If so, this is a duplicate of #74, which was fixed in #65, which made it into version 1.0.1. I've confirmed that upgrading to 1.0.1 or 1.0.2 resolved this issue for me.