improved recaptcha error message

- works on register and share project
- decided not to go down i18n for register, would be scope creep on async form

services/web/app/coffee/Features/Captcha/CaptchaMiddleware.coffee

@@ -16,6 +16,6 @@ module.exports = CaptchaMiddleware =
 			return next(error) if error?
 			if !body?.success
 				logger.warn {statusCode: response.statusCode, body: body}, 'failed recaptcha siteverify request'
-				return res.sendStatus 400
+				return res.status(400).send({errorReason:"cannot_verify_user_not_robot", message:{text:"We could not verifiy you are not a robot. Please check Google is not blocked by firewall or adblocker."}})
 			else
 				return next()

services/web/app/views/project/editor/share.pug

@@ -185,6 +185,8 @@ script(type='text/ng-template', id='shareProjectModalTemplate')
 				span(ng-switch="state.errorReason")
 					span(ng-switch-when="cannot_invite_non_user")
 						| #{translate("cannot_invite_non_user")}
+					span(ng-switch-when="cannot_verify_user_not_robot")
+						| #{translate("cannot_verify_user_not_robot")}
 					span(ng-switch-when="cannot_invite_self")
 						| #{translate("cannot_invite_self")}
 					span(ng-switch-when="invalid_email")

services/web/public/coffee/ide/share/controllers/ShareProjectModalController.coffee

@@ -127,10 +127,14 @@ define [
 								# with new collaborator information.
 								addNextMember()
 							, 0
-						.catch (err) ->
+						.catch (httpResponse) ->
+							{data, status, headers, config } = httpResponse
 							$scope.state.inflight = false
 							$scope.state.error = true
-							if err.status? and err.status == 400
+
+							if data?.errorReason?
+								$scope.state.errorReason = data?.errorReason
+							else if status? and status == 400
 								$scope.state.errorReason = 'invalid_email'
 							else
 								$scope.state.errorReason = null