Use indexOf instead of startsWith for Chrome (issue ruby#48).

postmodern · postmodern · commit d5ec25783a31 · 2013-02-28T17:41:28.000-08:00
* It appears startsWith / endsWith were added in ES 6. Gecko apparently
  supports this already.
diff --git a/javascripts/page.js b/javascripts/page.js
@@ -4,7 +4,7 @@ var Page = {
       var current_page = location.pathname;
 
       $("div.site-links a").each(function(i) {
-        if (current_page.startsWith($(this).attr('href'))) {
+        if (current_page.index_of($(this).attr('href')) == 0) {
           $(this).css('font-weight', 'bold');
         }
       });

Original file line number	Diff line number	Diff line change
`@@ -4,7 +4,7 @@ var Page = {`
`4`	`4`	`var current_page = location.pathname;`
`5`	`5`
`6`	`6`	`$("div.site-links a").each(function(i) {`
`7`		`- if (current_page.startsWith($(this).attr('href'))) {`
	`7`	`+ if (current_page.index_of($(this).attr('href')) == 0) {`
`8`	`8`	`$(this).css('font-weight', 'bold');`
`9`	`9`	`}`
`10`	`10`	`});`