I'd really love it if you repeated the same tests for Bing, just to get coverage. (Yahoo/Baidu would be the other big two.) Historically, Bing hasn't used fully functional headless browsers to crawl, which has limited its ability to index dynamic content like this.
Google has "only" 70% market share, so it seems irresponsible to make engineering decisions without testing the others. Google+Bing+Yahoo+Baidu get you to 98%.