Merge branch 'szzh' into develop

app/controllers/student_work_controller.rb

@@ -948,7 +948,6 @@ class StudentWorkController < ApplicationController
             }
     uri = URI(url)
     body = solutions.to_json
-    binding.pry
     res = Net::HTTP.new(uri.host, uri.port).start do |client|
       request                 = Net::HTTP::Post.new(uri.path)
       request.body            = body