allow spaces in server interface router port name

CHANGELOG.md

@@ -15,6 +15,7 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/).
 - Fixed Traffic Router crs/stats to prevent overflow and to correctly record the time used in averages.
 - [#5893](https://github.com/apache/trafficcontrol/issues/5893) - A self signed certificate is created when an HTTPS delivery service is created or an HTTP delivery service is updated to HTTPS.
 - [#6255](https://github.com/apache/trafficcontrol/issues/6255) - Unreadable Prod Mode CDN Notifications in Traffic Portal
+- [#6259](https://github.com/apache/trafficcontrol/issues/6259) - Traffic Portal No Longer Allows Spaces in Server Object "Router Port Name"
 
 ### Changed
 - Updated `t3c` to request less unnecessary deliveryservice-server assignment and invalidation jobs data via new query params supported by Traffic Ops

traffic_portal/app/src/common/modules/form/server/form.server.tpl.html

@@ -258,10 +258,8 @@ <h6>Deprecated</h6>
                         <small class="input-error" ng-show="hasPropertyError(serverForm[inf.name+'-router-hostname'], 'maxlength')">Too long</small>
                         <small class="input-error" ng-show="hasPropertyError(serverForm[inf.name+'-router-hostname'], 'pattern')">No Spaces</small>
                         <label for="{{inf.name}}-router-portname" ng-class="{'has-error': hasError(serverForm[inf.name+'-router-portname'])}">Router Port Name</label>
-                        <input id="{{inf.name}}-router-portname" ng-model="inf.routerPortName" ng-class="{'has-error': hasError(serverForm[inf.name+'-router-portname'])}" type="text" name="{{inf.name}}-router-portname" maxlength="256" pattern="\S*"/>
+                        <input id="{{inf.name}}-router-portname" ng-model="inf.routerPortName" ng-class="{'has-error': hasError(serverForm[inf.name+'-router-portname'])}" type="text" name="{{inf.name}}-router-portname" maxlength="256"/>
                         <small class="input-error" ng-show="hasPropertyError(serverForm[inf.name+'-router-portname'], 'maxlength')">Too long</small>
-                        <small class="input-error" ng-show="hasPropertyError(serverForm[inf.name+'-router-portname'], 'pattern')">No Spaces</small>
-
                     </div>
 
                     <fieldset>