Basic validation of HS URL for reset password

src/components/structures/auth/ForgotPassword.js

@@ -241,7 +241,12 @@ module.exports = React.createClass({
                 serverName: parsedHsUrl.hostname,
             });
         } catch (e) {
-            // ignore
+            errorText = <div className="mx_Login_error">{_t(
+                "The homeserver URL %(hsUrl)s doesn't seem to be valid URL. Please " +
+                "enter a valid URL including the protocol prefix.",
+            {
+                hsUrl: this.state.enteredHsUrl,
+            })}</div>;
         }
 
         // If custom URLs are allowed, wire up the server details edit link.

src/i18n/strings/en_EN.json

@@ -1374,16 +1374,17 @@
     "A new password must be entered.": "A new password must be entered.",
     "New passwords must match each other.": "New passwords must match each other.",
     "Resetting password will currently reset any end-to-end encryption keys on all devices, making encrypted chat history unreadable, unless you first export your room keys and re-import them afterwards. In future this will be improved.": "Resetting password will currently reset any end-to-end encryption keys on all devices, making encrypted chat history unreadable, unless you first export your room keys and re-import them afterwards. In future this will be improved.",
+    "Your account": "Your account",
+    "Your account on %(serverName)s": "Your account on %(serverName)s",
+    "The homeserver URL %(hsUrl)s doesn't seem to be valid URL. Please enter a valid URL including the protocol prefix.": "The homeserver URL %(hsUrl)s doesn't seem to be valid URL. Please enter a valid URL including the protocol prefix.",
+    "A verification email will be sent to your inbox to confirm setting your new password.": "A verification email will be sent to your inbox to confirm setting your new password.",
+    "Send Reset Email": "Send Reset Email",
+    "Sign in instead": "Sign in instead",
     "An email has been sent to %(emailAddress)s. Once you've followed the link it contains, click below.": "An email has been sent to %(emailAddress)s. Once you've followed the link it contains, click below.",
     "I have verified my email address": "I have verified my email address",
     "Your password has been reset": "Your password has been reset",
     "You have been logged out of all devices and will no longer receive push notifications. To re-enable notifications, sign in again on each device": "You have been logged out of all devices and will no longer receive push notifications. To re-enable notifications, sign in again on each device",
     "Return to login screen": "Return to login screen",
-    "Your account": "Your account",
-    "Your account on %(serverName)s": "Your account on %(serverName)s",
-    "A verification email will be sent to your inbox to confirm setting your new password.": "A verification email will be sent to your inbox to confirm setting your new password.",
-    "Send Reset Email": "Send Reset Email",
-    "Sign in instead": "Sign in instead",
     "Set a new password": "Set a new password",
     "Invalid homeserver discovery response": "Invalid homeserver discovery response",
     "Invalid identity server discovery response": "Invalid identity server discovery response",