Fixes #2806 issue with trim in dropdown

RELEASE-NOTES.md

@@ -27,6 +27,7 @@
 - **Transition** - Transition callbacks now all have the correct `this` set. #2758
 - **Form / Input** - Fixes `::placeholder` text color for `ui error input`, modifies form error placeholder color to distinguish from form value error color #2786
 - **Form** - Date input and other special input in chrome now are the same height as normal input (adds custom vendor shadow dom styling) #2704
+- **Dropdown** - Remove use of `trim` which causes issues IE 11 and below #2806
 
 **Additional Bugs**
 - **Build Tools** - Fixes issue on `win` platform where packaged theme would not correctly update when using watch due to regExp not matching windows path separators.

src/definitions/modules/dropdown.js

@@ -1509,8 +1509,8 @@ $.fn.dropdown = function(parameters) {
               return ($choice.data(metadata.text) !== undefined)
                 ? $choice.data(metadata.text)
                 : (preserveHTML)
-                  ? $choice.html().trim()
-                  : $choice.text().trim()
+                  ? $.trim($choice.html())
+                  : $.trim($choice.text())
               ;
             }
           },
@@ -1522,7 +1522,7 @@ $.fn.dropdown = function(parameters) {
             return ($choice.data(metadata.value) !== undefined)
               ? $choice.data(metadata.value)
               : (typeof choiceText === 'string')
-                ? choiceText.toLowerCase().trim()
+                ? $.trim(choiceText.toLowerCase())
                 : choiceText
             ;
           },