é would be illegal in a url, so that’s why its stripped out. The problem with replacing it with “e”, is that “e” is not the same thing as “é”. For french characters, its a pretty reasonable 1 to 1 map, but what would the url_title function do with other illegal characters, such as say… “£”?
Its tricky. Perhaps an array of “if you see this, make it this”? I’m not sure. How would you suggest CI handle chars that don’t nicely map to legal URL characters?