looks good but the reg exes are hard to understand without comments, hurt my head :grimacing:! also missing spaces in between. Also don't need to do this for every request. can we can move up to line 28? Please note spacing for future.

```javascript
// trim off leading and trailing slashes from public url, which we'll need to prepend to asset urls later
var trimmedPublicUrl = carteroJson.publicUrl.replace( /\/$/, "" ).replace( /^\//, "" );
```