This causes a JS error: "Uncaught TypeError: Cannot read property 'msie' of undefined". This is because jQuery deprecated the feature in 1.3 and since 1.9 it has been removed entirely.
If it were up to me I'd drop support for IE < 8 so the entire shim can be removed; if you insist on supporting older browsers you need to find a better way (modernizr might be a good option, 'future proof' but, imho, way overkill) to detect browser version/features.
Line 52oftweets.jscontains:This causes a JS error: "Uncaught TypeError: Cannot read property 'msie' of undefined". This is because jQuery deprecated the feature in 1.3 and since 1.9 it has been removed entirely.
If it were up to me I'd drop support for IE < 8 so the entire shim can be removed; if you insist on supporting older browsers you need to find a better way (modernizr might be a good option, 'future proof' but, imho, way overkill) to detect browser version/features.