IE8 Support

dist/echo.js

@@ -21,8 +21,8 @@ window.Echo = (function (window, document, undefined) {
       var self = store[i];
       if (_inView(self)) {
         self.src = self.getAttribute('data-echo');
-        if ([].indexOf && store.indexOf(self) !== -1) {
+        if ([].indexOf && [].slice.call(store).indexOf(self) !== -1) {
-          store.splice(i, 1);
+          [].slice.call(store).splice(i, 1);
         }
       }
     }

dist/echo.min.js

@@ -5,4 +5,4 @@
  *  by Todd Motto: http://toddmotto.com
  *  Copyright. MIT licensed.
  */
-window.Echo=function(a,b){"use strict";var c,d=function(c){var d=c.getBoundingClientRect();return(d.top>=0&&d.left>=0&&d.top)<=(a.innerHeight||b.documentElement.clientHeight)},e=function(){for(var a=0;a<c.length;a++){var b=c[a];d(b)&&(b.src=b.getAttribute("data-echo"),[].indexOf&&-1!==c.indexOf(b)&&c.splice(a,1))}},f=function(){c=b.querySelectorAll("[data-echo]"),e(),a.onscroll=e};return{init:f}}(window,document);
+window.Echo=function(a,b){"use strict";var c,d=function(c){var d=c.getBoundingClientRect();return(d.top>=0&&d.left>=0&&d.top)<=(a.innerHeight||b.documentElement.clientHeight)},e=function(){for(var a=0;a<c.length;a++){var b=c[a];d(b)&&(b.src=b.getAttribute("data-echo"),[].indexOf&&-1!==[].slice.call(c).indexOf(b)&&[].slice.call(c).splice(a,1))}},f=function(){c=b.querySelectorAll("[data-echo]"),e(),a.onscroll=e};return{init:f}}(window,document);

src/echo.js

@@ -14,8 +14,8 @@ window.Echo = (function (window, document, undefined) {
       var self = store[i];
       if (_inView(self)) {
         self.src = self.getAttribute('data-echo');
-        if ([].indexOf && store.indexOf(self) !== -1) {
+        if ([].indexOf && [].slice.call(store).indexOf(self) !== -1) {
-          store.splice(i, 1);
+          [].slice.call(store).splice(i, 1);
         }
       }
     }