diff --git a/.rubocop.yml b/.rubocop.yml
index 0a5a84c6e..62b242e67 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -9,7 +9,7 @@ AllCops:
     - "spec/**/*"
   NewCops: enable
   UseCache: false
-  TargetRubyVersion: 2.6
+  TargetRubyVersion: 3.2
 
 ##################### Style ####################################
 
@@ -100,6 +100,7 @@ Style/GuardClause:
 
 Style/HashSyntax:
   EnforcedStyle: ruby19
+  EnforcedShorthandSyntax: never
 
 Style/IfUnlessModifier:
   Enabled: true
diff --git a/Dockerfile.production b/Dockerfile.production
index 438d729e9..61595ea27 100644
--- a/Dockerfile.production
+++ b/Dockerfile.production
@@ -15,7 +15,7 @@ RUN \
 
 ENV APP_HOME /usr/src/app
 ENV RAILS_ENV=production
-ENV GEM_HOME=$APP_HOME/vendor/bundle/ruby/2.7.0
+ENV GEM_HOME=$APP_HOME/vendor/bundle/ruby/3.2.0
 ENV PATH=$GEM_HOME/bin:$PATH
 ENV BUNDLE_APP_CONFIG=.bundle
 ENV BUNDLE_BUILD__SASSC=--disable-march-tune-native
@@ -29,7 +29,7 @@ RUN \
   bundle config set path '/usr/src/app/tmp/bundle' && \
   bundle install --jobs `nproc` && \
   cp -r tmp/bundle/ vendor && \
-  rm -rf vendor/bundle/ruby/2.7.0/cache && \
+  rm -rf vendor/bundle/ruby/3.2.0/cache && \
   find vendor/bundle/ruby -type d -name '.git' -exec rm -rf {} + && \
   bundle config --local path vendor/bundle
 
@@ -65,14 +65,17 @@ RUN \
 RUN \
   --mount=type=cache,target=/var/cache/apt,sharing=locked \
   --mount=type=cache,target=/var/lib/apt,sharing=locked \
+  DEBIAN_FRONTEND=noninteractive \
   apt-get update -qq && \
   apt-get install -y --no-install-recommends \
+  default-jre-headless \
+  ca-certificates-java && \
+  apt-get install -y --no-install-recommends \
   libjemalloc2 \
   groff-base \
   postgresql-client \
-  netcat-openbsd \
   npm \
-  default-jre-headless \
+  netcat-openbsd \
   poppler-utils \
   librsvg2-2 \
   libvips42 \
@@ -95,7 +98,7 @@ RUN \
 
 ENV APP_HOME /usr/src/app
 ENV RAILS_ENV=production
-ENV GEM_HOME=$APP_HOME/vendor/bundle/ruby/2.7.0
+ENV GEM_HOME=$APP_HOME/vendor/bundle/ruby/3.2.0
 ENV PATH=$GEM_HOME/bin:$PATH
 ENV BUNDLE_APP_CONFIG=.bundle
 
diff --git a/app/controllers/active_storage/blobs/redirect_controller.rb b/app/controllers/active_storage/blobs/redirect_controller.rb
index d70480d92..31742a9fc 100644
--- a/app/controllers/active_storage/blobs/redirect_controller.rb
+++ b/app/controllers/active_storage/blobs/redirect_controller.rb
@@ -8,7 +8,7 @@ module ActiveStorage
 
       def show
         expires_in ActiveStorage.service_urls_expire_in
-        redirect_to @blob.url(disposition: params[:disposition])
+        redirect_to @blob.url(disposition: params[:disposition]), allow_other_host: true
       end
     end
   end
diff --git a/app/controllers/active_storage/representations/redirect_controller.rb b/app/controllers/active_storage/representations/redirect_controller.rb
index 38b2f5d9e..edebc540e 100644
--- a/app/controllers/active_storage/representations/redirect_controller.rb
+++ b/app/controllers/active_storage/representations/redirect_controller.rb
@@ -12,7 +12,8 @@ module ActiveStorage
         end
 
         expires_in ActiveStorage.service_urls_expire_in
-        redirect_to @blob.representation(params[:variation_key]).processed.url(disposition: params[:disposition])
+        redirect_to @blob.representation(params[:variation_key]).processed.url(disposition: params[:disposition]),
+                    allow_other_host: true
       end
 
       private
diff --git a/app/controllers/activities_controller.rb b/app/controllers/activities_controller.rb
index f1690e56e..594dfb76d 100644
--- a/app/controllers/activities_controller.rb
+++ b/app/controllers/activities_controller.rb
@@ -6,7 +6,7 @@ class ActivitiesController < ApplicationController
     render json: {
       more_url: local_vars.fetch(:more_activities_url),
       html: render_to_string(
-        partial: 'list', locals: @vars
+        partial: 'list', locals: @vars, formats: :html
       )
     }
   end
diff --git a/app/controllers/assets_controller.rb b/app/controllers/assets_controller.rb
index 161268c32..ec17ef0a7 100644
--- a/app/controllers/assets_controller.rb
+++ b/app/controllers/assets_controller.rb
@@ -28,7 +28,8 @@ class AssetsController < ApplicationController
         can_edit: can_manage_asset?(@asset),
         gallery: params[:gallery],
         preview: params[:preview]
-      }
+      },
+      formats: :html
     ) }
   end
 
@@ -60,7 +61,8 @@ class AssetsController < ApplicationController
                                           locals: {
                                             asset: @asset,
                                             gallery_view_id: gallery_view_id
-                                          }) }
+                                          },
+                                          formats: :html) }
   end
 
   def file_url
diff --git a/app/controllers/at_who_controller.rb b/app/controllers/at_who_controller.rb
index 09c188f45..c4c5ae9ef 100644
--- a/app/controllers/at_who_controller.rb
+++ b/app/controllers/at_who_controller.rb
@@ -7,7 +7,7 @@ class AtWhoController < ApplicationController
   def users
     users = @team.search_users(@query).limit(Constants::ATWHO_SEARCH_LIMIT + 1)
     render json: {
-      users: [render_to_string(partial: 'shared/smart_annotation/users', locals: { users: users })]
+      users: [render_to_string(partial: 'shared/smart_annotation/users', locals: { users: users }, formats: :html)]
     }
   end
 
@@ -44,7 +44,8 @@ class AtWhoController < ApplicationController
     render json: {
       res: [
         render_to_string(partial: 'shared/smart_annotation/repository_items',
-                         locals: { repository_rows: items, repository: repository })
+                         locals: { repository_rows: items, repository: repository },
+                         formats: :html)
       ],
       repository: repository_id,
       team: current_team.id
@@ -53,15 +54,19 @@ class AtWhoController < ApplicationController
 
   def menu
     repositories = Repository.active.accessible_by_teams(@team)
-    render json: { html: render_to_string({ partial: "shared/smart_annotation/menu.html.erb",
-                                            locals: { repositories: repositories } }) }
+    render json: { 
+      html: render_to_string(partial: 'shared/smart_annotation/menu',
+                             locals: { repositories: repositories },
+                             formats: :html)
+    }
   end
 
   def projects
     res = SmartAnnotation.new(current_user, current_team, @query)
     render json: {
       res: [render_to_string(partial: 'shared/smart_annotation/project_items',
-                             locals: { projects: res.projects })],
+                             locals: { projects: res.projects },
+                             formats: :html)],
       team: current_team.id
     }
   end
@@ -70,7 +75,8 @@ class AtWhoController < ApplicationController
     res = SmartAnnotation.new(current_user, current_team, @query)
     render json: {
       res: [render_to_string(partial: 'shared/smart_annotation/experiment_items',
-                             locals: { experiments: res.experiments })],
+                             locals: { experiments: res.experiments },
+                             formats: :html)],
       team: current_team.id
     }
   end
@@ -79,7 +85,8 @@ class AtWhoController < ApplicationController
     res = SmartAnnotation.new(current_user, current_team, @query)
     render json: {
       res: [render_to_string(partial: 'shared/smart_annotation/my_module_items',
-                             locals: { my_modules: res.my_modules })],
+                             locals: { my_modules: res.my_modules },
+                             formats: :html)],
       team: current_team.id
     }
   end
diff --git a/app/controllers/bio_eddie_assets_controller.rb b/app/controllers/bio_eddie_assets_controller.rb
index 5b4232312..473271522 100644
--- a/app/controllers/bio_eddie_assets_controller.rb
+++ b/app/controllers/bio_eddie_assets_controller.rb
@@ -18,10 +18,9 @@ class BioEddieAssetsController < ApplicationController
     if asset && bio_eddie_params[:object_type] == 'Step'
       create_register_bio_eddie_activity(asset, current_user) if bio_eddie_params[:schedule_for_registration] == 'true'
       render json: {
-        html: render_to_string(partial: 'assets/asset', locals: {
-                                 asset: asset,
-                                 gallery_view_id: bio_eddie_params[:object_id]
-                               })
+        html: render_to_string(partial: 'assets/asset',
+                               locals: { asset: asset, gallery_view_id: bio_eddie_params[:object_id] },
+                               formats: :html)
       }
     elsif asset && bio_eddie_params[:object_type] == 'Result'
       create_register_bio_eddie_activity(asset, current_user) if bio_eddie_params[:schedule_for_registration] == 'true'
diff --git a/app/controllers/comments_controller.rb b/app/controllers/comments_controller.rb
index d82f50561..6341043e4 100644
--- a/app/controllers/comments_controller.rb
+++ b/app/controllers/comments_controller.rb
@@ -28,7 +28,8 @@ class CommentsController < ApplicationController
       object_url: object_url,
       comment_addable: comment_addable?(@commentable),
       comments: render_to_string(partial: 'shared/comments/comments_list',
-                                 locals: { comments: comments })
+                                 locals: { comments: comments },
+                                 formats: :html)
     }
   end
 
diff --git a/app/controllers/dashboard/calendars_controller.rb b/app/controllers/dashboard/calendars_controller.rb
index 5fe3defe5..93217a54c 100644
--- a/app/controllers/dashboard/calendars_controller.rb
+++ b/app/controllers/dashboard/calendars_controller.rb
@@ -30,9 +30,9 @@ module Dashboard
                                .where('my_modules.due_date > ? AND my_modules.due_date < ?', start_date, end_date)
                                .where(projects: { team_id: current_team.id })
       render json: {
-        html: render_to_string(partial: 'shared/my_modules_list_partial', locals: {
-                                 my_modules: my_modules
-                               })
+        html: render_to_string(partial: 'shared/my_modules_list_partial',
+                               locals: { my_modules: my_modules },
+                               formats: :html)
       }
     end
   end
diff --git a/app/controllers/dashboard/current_tasks_controller.rb b/app/controllers/dashboard/current_tasks_controller.rb
index a57f8e85c..703935006 100644
--- a/app/controllers/dashboard/current_tasks_controller.rb
+++ b/app/controllers/dashboard/current_tasks_controller.rb
@@ -14,7 +14,7 @@ module Dashboard
       tasks = load_tasks.page(page).per(Constants::INFINITE_SCROLL_LIMIT).without_count
 
       tasks_list = tasks.map do |task|
-        render_to_string(partial: 'dashboards/current_tasks/task', locals: { task: task })
+        render_to_string(partial: 'dashboards/current_tasks/task', locals: { task: task }, formats: :html)
       end
 
       render json: { data: tasks_list, next_page: tasks.next_page }
diff --git a/app/controllers/experiments_controller.rb b/app/controllers/experiments_controller.rb
index 0c69e8aa7..57f68a834 100644
--- a/app/controllers/experiments_controller.rb
+++ b/app/controllers/experiments_controller.rb
@@ -31,8 +31,7 @@ class ExperimentsController < ApplicationController
     @experiment = Experiment.new
     render json: {
       html: render_to_string(
-        partial: 'new_modal',
-        formats: :html
+        partial: 'new_modal', formats: :html
       )
     }
   end
@@ -63,7 +62,7 @@ class ExperimentsController < ApplicationController
 
   def show
     render json: {
-      html: render_to_string(partial: 'experiments/details_modal')
+      html: render_to_string(partial: 'experiments/details_modal', formats: :html)
     }
   end
 
@@ -143,9 +142,7 @@ class ExperimentsController < ApplicationController
 
   def edit
     render json: {
-      html: render_to_string(
-        partial: 'edit_modal'
-      )
+      html: render_to_string(partial: 'edit_modal', formats: :html)
     }
   end
 
@@ -256,7 +253,8 @@ class ExperimentsController < ApplicationController
     render json: {
       html: render_to_string(
         partial: 'clone_modal',
-        locals: { view_mode: params[:view_mode] }
+        locals: { view_mode: params[:view_mode] },
+        formats: :html
       )
     }
   end
@@ -285,9 +283,7 @@ class ExperimentsController < ApplicationController
   def move_modal
     @projects = @experiment.movable_projects(current_user)
     render json: {
-      html: render_to_string(
-        partial: 'move_modal'
-      )
+      html: render_to_string(partial: 'move_modal', formats: :html)
     }
   end
 
@@ -331,9 +327,7 @@ class ExperimentsController < ApplicationController
     @experiments = @experiment.project.experiments.active.where.not(id: @experiment)
                               .managable_by_user(current_user).order(name: :asc)
     render json: {
-      html: render_to_string(
-        partial: 'move_modules_modal'
-      )
+      html: render_to_string(partial: 'move_modules_modal', formats: :html)
     }
   end
 
@@ -394,7 +388,8 @@ class ExperimentsController < ApplicationController
     render json: {
       workflowimg: render_to_string(
         partial: 'projects/show/workflow_img',
-        locals: { experiment: @experiment }
+        locals: { experiment: @experiment },
+        formats: :html
       )
     }
   end
diff --git a/app/controllers/global_activities_controller.rb b/app/controllers/global_activities_controller.rb
index 20bfad3ef..1ea1038c9 100644
--- a/app/controllers/global_activities_controller.rb
+++ b/app/controllers/global_activities_controller.rb
@@ -55,11 +55,17 @@ class GlobalActivitiesController < ApplicationController
     @next_page = activities.next_page
     @starting_timestamp = activities.first&.created_at.to_i
 
-    render json: {
-      activities_html: render_to_string(partial: 'activity_list'),
-      next_page: @next_page,
-      starting_timestamp: @starting_timestamp
-    }
+    respond_to do |format|
+      format.json do
+        render json: {
+          activities_html: render_to_string(partial: 'activity_list'),
+          next_page: @next_page,
+          starting_timestamp: @starting_timestamp
+        }
+      end
+      format.html do
+      end
+    end
   end
 
   def team_filter
diff --git a/app/controllers/my_modules_controller.rb b/app/controllers/my_modules_controller.rb
index efe6c49c2..5722ccb57 100644
--- a/app/controllers/my_modules_controller.rb
+++ b/app/controllers/my_modules_controller.rb
@@ -143,15 +143,15 @@ class MyModulesController < ApplicationController
     @activities = @my_module.last_activities(1, @per_page)
 
     render json: {
-      html: render_to_string(partial: 'activities')
+      html: render_to_string(partial: 'activities', formats: :html)
     }
   end
 
   # Due date modal window in full-zoom canvas
   def due_date
     render json: {
-      html: render_to_string(partial: 'due_date'),
-      title: t('my_modules.due_date.title', module: escape_input(@my_module.name))
+      html: render_to_string(partial: 'due_date', formats: :html),
+      title: t('.due_date.title', module: escape_input(@my_module.name))
     }
   end
 
diff --git a/app/controllers/protocols_controller.rb b/app/controllers/protocols_controller.rb
index ad0aec197..1d29cb737 100644
--- a/app/controllers/protocols_controller.rb
+++ b/app/controllers/protocols_controller.rb
@@ -852,28 +852,15 @@ class ProtocolsController < ApplicationController
   end
 
   def load_from_repository_modal
-    @protocol = Protocol.find_by_id(params[:id])
-    respond_to do |format|
-      format.json do
-        render json: {
-          html: render_to_string({
-            partial: "my_modules/protocols/load_from_repository_modal_body.html.erb"
-          })
-        }
-      end
-    end
+    render json: {
+      html: render_to_string(partial: 'my_modules/protocols/load_from_repository_modal_body', formats: :html)
+    }
   end
 
   def protocol_status_bar
-    respond_to do |format|
-      format.json do
-        render json: {
-          html: render_to_string({
-            partial: "my_modules/protocols/protocol_status_bar.html.erb"
-          })
-        }
-      end
-    end
+    render json: {
+      html: render_to_string(partial: 'my_modules/protocols/protocol_status_bar', formats: :html)
+    }
   end
 
   def version_comment
diff --git a/app/controllers/repositories_controller.rb b/app/controllers/repositories_controller.rb
index 92d1a7f90..ff51239a7 100644
--- a/app/controllers/repositories_controller.rb
+++ b/app/controllers/repositories_controller.rb
@@ -84,23 +84,13 @@ class RepositoriesController < ApplicationController
 
   def create_modal
     @repository = Repository.new
-    respond_to do |format|
-      format.json do
-        render json: {
-          html: render_to_string(
-            partial: 'create_repository_modal'
-          )
-        }
-      end
-    end
+    render json: {
+      html: render_to_string(partial: 'create_repository_modal', formats: :html)
+    }
   end
 
   def share_modal
-    respond_to do |format|
-      format.json do
-        render json: { html: render_to_string(partial: 'share_repository_modal') }
-      end
-    end
+    render json: { html: render_to_string(partial: 'share_repository_modal', formats: :html) }
   end
 
   def hide_reminders
diff --git a/app/controllers/result_texts_controller.rb b/app/controllers/result_texts_controller.rb
index 11822a192..8fa75ea34 100644
--- a/app/controllers/result_texts_controller.rb
+++ b/app/controllers/result_texts_controller.rb
@@ -101,20 +101,19 @@ class ResultTextsController < ApplicationController
 
     respond_to do |format|
       if saved
-        format.html {
+        format.html do
           flash[:success] = success_flash
           redirect_to results_my_module_path(@my_module)
-        }
-        format.json {
+        end
+        format.json do
           render json: {
-            html: render_to_string({
-              partial: "my_modules/result.html.erb",
-              locals: {
-                result: @result
-              }
-            })
-          }, status: :ok
-        }
+            html: render_to_string(
+              partial: 'my_modules/result.html.erb',
+              locals: { result: @result },
+              formats: :html
+            )
+          }
+        end
       else
         format.json {
           render json: @result.errors, status: :bad_request
diff --git a/app/controllers/steps_controller.rb b/app/controllers/steps_controller.rb
index b3ab0399d..7cc3d400c 100644
--- a/app/controllers/steps_controller.rb
+++ b/app/controllers/steps_controller.rb
@@ -102,7 +102,8 @@ class StepsController < ApplicationController
     render json: {
       html: render_to_string(
         partial: 'steps/step',
-        locals: { step: @step }
+        locals: { step: @step },
+        formats: :html
       )
     }
   end
diff --git a/app/controllers/teams_controller.rb b/app/controllers/teams_controller.rb
index 7a5f15523..f0bf65cff 100644
--- a/app/controllers/teams_controller.rb
+++ b/app/controllers/teams_controller.rb
@@ -15,7 +15,8 @@ class TeamsController < ApplicationController
     render json: {
       html: render_to_string(
         partial: 'shared/sidebar/projects',
-        locals: { team: current_team, sort: params[:sort] }
+        locals: { team: current_team, sort: params[:sort] },
+        formats: :html
       )
     }
   end
@@ -50,7 +51,8 @@ class TeamsController < ApplicationController
             partial: 'projects/export/modal',
             locals: { num_projects: @exp_projects.size,
                       limit: TeamZipExport.exports_limit,
-                      num_of_requests_left: current_user.exports_left - 1 }
+                      num_of_requests_left: current_user.exports_left - 1 },
+            formats: :html
           ),
           title: t('projects.export_projects.modal_title')
         }
@@ -58,7 +60,8 @@ class TeamsController < ApplicationController
         render json: {
           html: render_to_string(
             partial: 'projects/export/error',
-            locals: { limit: TeamZipExport.exports_limit }
+            locals: { limit: TeamZipExport.exports_limit },
+            formats: :html
           ),
           title: t('projects.export_projects.error_title'),
           status: 'error'
diff --git a/app/controllers/user_my_modules_controller.rb b/app/controllers/user_my_modules_controller.rb
index 2a8766630..1e2302ad8 100644
--- a/app/controllers/user_my_modules_controller.rb
+++ b/app/controllers/user_my_modules_controller.rb
@@ -11,9 +11,7 @@ class UserMyModulesController < ApplicationController
     @user_my_modules = @my_module.user_my_modules
 
     render json: {
-      html: render_to_string(
-        partial: 'designated_users'
-      ),
+      html: render_to_string(partial: 'designated_users', formats: :html),
       my_module_id: @my_module.id,
       counter: @my_module.designated_users.count # Used for counter badge
     }
@@ -21,7 +19,7 @@ class UserMyModulesController < ApplicationController
 
   def index
     render json: {
-      html: render_to_string(partial: 'index')
+      html: render_to_string(partial: 'index', formats: :html)
     }
   end
 
@@ -33,7 +31,7 @@ class UserMyModulesController < ApplicationController
     render json: {
       my_module: @my_module,
       html: render_to_string(
-        partial: 'index_edit'
+        partial: 'index_edit', formats: :html
       )
     }
   end
@@ -48,7 +46,8 @@ class UserMyModulesController < ApplicationController
       if params[:table]
         render json: {
           html: render_to_string(partial: 'experiments/assigned_users',
-                                 locals: { my_module: @my_module, user: current_user, skip_unassigned: false }),
+                                 locals: { my_module: @my_module, user: current_user, skip_unassigned: false },
+                                 formats: :html),
           unassign_url: my_module_user_my_module_path(@my_module, @um)
         }
       else
@@ -75,7 +74,8 @@ class UserMyModulesController < ApplicationController
       if params[:table]
         render json: {
           html: render_to_string(partial: 'experiments/assigned_users',
-                                 locals: { my_module: @my_module, user: current_user, skip_unassigned: false })
+                                 locals: { my_module: @my_module, user: current_user, skip_unassigned: false },
+                                 formats: :html)
         }
       else
         render json: {}
diff --git a/app/controllers/users/invitations_controller.rb b/app/controllers/users/invitations_controller.rb
index b5321b2f3..232869234 100644
--- a/app/controllers/users/invitations_controller.rb
+++ b/app/controllers/users/invitations_controller.rb
@@ -137,7 +137,7 @@ module Users
       end
 
       render json: {
-        html: render_to_string(partial: 'shared/invite_users_modal_results')
+        html: render_to_string(partial: 'shared/invite_users_modal_results', formats: :html)
       }
     end
 
diff --git a/app/controllers/users/settings/teams_controller.rb b/app/controllers/users/settings/teams_controller.rb
index ea85b6232..c798d8cf2 100644
--- a/app/controllers/users/settings/teams_controller.rb
+++ b/app/controllers/users/settings/teams_controller.rb
@@ -77,7 +77,8 @@ module Users
         render json: {
           html: render_to_string(
             partial: 'users/settings/teams/name_modal_body',
-            locals: { team: @team }
+            locals: { team: @team },
+            formats: :html
           )
         }
       end
@@ -86,7 +87,8 @@ module Users
         render json: {
           html: render_to_string(
             partial: 'users/settings/teams/description_modal_body',
-            locals: { team: @team }
+            locals: { team: @team },
+            formats: :html
           )
         }
       end
diff --git a/app/controllers/users/settings/user_teams_controller.rb b/app/controllers/users/settings/user_teams_controller.rb
index de13e6efd..171602c11 100644
--- a/app/controllers/users/settings/user_teams_controller.rb
+++ b/app/controllers/users/settings/user_teams_controller.rb
@@ -40,7 +40,8 @@ module Users
         render json: {
           html: render_to_string(
             partial: 'users/settings/user_teams/leave_user_team_modal_body',
-            locals: { user_assignment: @user_assignment }
+            locals: { user_assignment: @user_assignment },
+            formats: :html
           ),
           heading: I18n.t(
             'users.settings.user_teams.leave_uo_heading',
@@ -54,7 +55,8 @@ module Users
           html: render_to_string(
             partial: 'users/settings/user_teams/' \
                       'destroy_user_team_modal_body',
-            locals: { user_assignment: @user_assignment }
+            locals: { user_assignment: @user_assignment },
+            formats: :html
           ),
           heading: I18n.t(
             'users.settings.user_teams.destroy_uo_heading',
diff --git a/app/datatables/protocol_linked_children_datatable.rb b/app/datatables/protocol_linked_children_datatable.rb
index d1b980717..4459eda06 100644
--- a/app/datatables/protocol_linked_children_datatable.rb
+++ b/app/datatables/protocol_linked_children_datatable.rb
@@ -60,19 +60,22 @@ class ProtocolLinkedChildrenDatatable < CustomDatatable
     res += "<li><span class='sn-icon sn-icon-projects'></span>&nbsp;"
     res += @controller.render_to_string(
       partial: 'search/results/partials/project_text',
-      locals: { project: record.my_module.experiment.project }
+      locals: { project: record.my_module.experiment.project },
+      formats: :html
     )
     res += '</li>'
     res += "<li><i class='sn-icon sn-icon-experiment'></i>&nbsp;"
     res += @controller.render_to_string(
       partial: 'search/results/partials/experiment_text',
-      locals: { experiment: record.my_module.experiment }
+      locals: { experiment: record.my_module.experiment },
+      formats: :html
     )
     res += '</li>'
     res += "<li><span class='sn-icon sn-icon-task'></span>&nbsp;"
     res += @controller.render_to_string(
       partial: 'search/results/partials/my_module_text',
-      locals: { my_module: record.my_module, link_to_page: :protocols }
+      locals: { my_module: record.my_module, link_to_page: :protocols },
+      formats: :html
     )
     res += '</li>'
     res += '</ol>'
diff --git a/app/datatables/protocols_datatable.rb b/app/datatables/protocols_datatable.rb
index 9d09f67af..973a88c57 100644
--- a/app/datatables/protocols_datatable.rb
+++ b/app/datatables/protocols_datatable.rb
@@ -241,11 +241,12 @@ class ProtocolsDatatable < CustomDatatable
   def versions_html(record)
     @view.controller
          .render_to_string(partial: 'protocols/index/protocol_versions',
-                           locals: { protocol: record, readable: can_read_protocol_in_repository?(@user, record) })
+                           locals: { protocol: record, readable: can_read_protocol_in_repository?(@user, record) },
+                           formats: :html)
   end
 
   def access_html(record)
-    @view.controller.render_to_string(partial: 'protocols/index/protocol_access', locals: { protocol: record })
+    @view.controller.render_to_string(partial: 'protocols/index/protocol_access', locals: { protocol: record }, formats: :html)
   end
 
   def published_by(record)
diff --git a/app/datatables/team_users_datatable.rb b/app/datatables/team_users_datatable.rb
index f3f2da3b2..324885b0c 100644
--- a/app/datatables/team_users_datatable.rb
+++ b/app/datatables/team_users_datatable.rb
@@ -78,7 +78,8 @@ class TeamUsersDatatable < CustomDatatable
               data: { action: 'destroy-user-team' }
             ),
             user: @user
-          }
+          },
+          formats: :html
         )
       }
     end
diff --git a/app/helpers/application_helper.rb b/app/helpers/application_helper.rb
index 4cc3b7369..5ba8f51e5 100644
--- a/app/helpers/application_helper.rb
+++ b/app/helpers/application_helper.rb
@@ -173,7 +173,8 @@ module ApplicationHelper
             :thumb,
             base64_encoded_imgs
           )
-        }
+        },
+        formats: :html
       )
   end
 
diff --git a/app/helpers/comment_helper.rb b/app/helpers/comment_helper.rb
index 1920bf61e..091630116 100644
--- a/app/helpers/comment_helper.rb
+++ b/app/helpers/comment_helper.rb
@@ -21,7 +21,7 @@ module CommentHelper
       resultsNumber: comments.size,
       moreUrl: more_url,
       html: render_to_string(
-        partial: partial, locals: { comments: comments }
+        partial: partial, locals: { comments: comments }, formats: :html
       )
     }
   end
@@ -49,7 +49,8 @@ module CommentHelper
           locals: {
             comment: comment,
             skip_header: false
-          }
+          },
+          formats: :html
         )
       }
     else
@@ -111,7 +112,8 @@ module CommentHelper
             locals: {
               comment: comment,
               skip_header: false
-            }
+            },
+            formats: :html
           )
         }
       else
diff --git a/app/helpers/global_activities_helper.rb b/app/helpers/global_activities_helper.rb
index 6962b3399..be6d429e6 100644
--- a/app/helpers/global_activities_helper.rb
+++ b/app/helpers/global_activities_helper.rb
@@ -23,10 +23,10 @@ module GlobalActivitiesHelper
     end
 
     if no_custom_links
-      I18n.t("global_activities.content.#{activity.type_of}_html", parameters.symbolize_keys)
+      I18n.t("global_activities.content.#{activity.type_of}_html", **parameters.symbolize_keys)
     else
       custom_auto_link(
-        I18n.t("global_activities.content.#{activity.type_of}_html", parameters.symbolize_keys),
+        I18n.t("global_activities.content.#{activity.type_of}_html", **parameters.symbolize_keys),
         team: activity.team
       )
     end
diff --git a/app/services/experiments/generate_workflow_image_service.rb b/app/services/experiments/generate_workflow_image_service.rb
index 88f18e9e2..3fc37bd2b 100644
--- a/app/services/experiments/generate_workflow_image_service.rb
+++ b/app/services/experiments/generate_workflow_image_service.rb
@@ -32,7 +32,7 @@ module Experiments
         penwidth: '3.0'
       }
 
-      @graph = Graphviz::Graph.new('G', @graph_params)
+      @graph = Graphviz::Graph.new('G', **@graph_params)
       @errors = []
     end
 
@@ -58,7 +58,7 @@ module Experiments
           # draw nodes
           node = @graph.add_node(
             "#{subgraph_id}-#{index}",
-            @node_params.merge(
+            **@node_params.merge(
               label: '',
               pos: "#{my_module.x / 10},-#{my_module.y / 10}!"
             )
@@ -80,7 +80,7 @@ module Experiments
       @exp.my_modules.without_group.each do |my_module|
         @graph.add_node(
           "Orphan-#{my_module.id}",
-          @node_params.merge(
+          **@node_params.merge(
             label: '',
             pos: "#{my_module.x / 10},-#{my_module.y / 10}!"
           )
diff --git a/app/views/access_permissions/partials/_default_public_user_role_form.html.erb b/app/views/access_permissions/partials/_default_public_user_role_form.html.erb
index 08a3d08ce..002f034ed 100644
--- a/app/views/access_permissions/partials/_default_public_user_role_form.html.erb
+++ b/app/views/access_permissions/partials/_default_public_user_role_form.html.erb
@@ -1,6 +1,6 @@
 <% editable ||= false %>
 <% if assignable.visible? %>
-  <%= form_with(model: assignable, url: [:update_default_public_user_role, :access_permissions, assignable], method: :put, remote: true, html: { class: 'member-item', id: 'public_assignments', data: { action: 'replace-form autosave-form', object_type: assignable.class.name.underscore.to_sym } }) do |f| %>
+  <%= form_with(model: assignable, url: [:update_default_public_user_role, :access_permissions, assignable], method: :put, html: { class: 'member-item', id: 'public_assignments', data: { remote: true, action: 'replace-form autosave-form', object_type: assignable.class.name.underscore.to_sym } }) do |f| %>
     <div class="user-assignment-info">
       <div class="global-avatar-container">
         <%= image_tag "icon/team.png", class: 'img-circle pull-left' %>
diff --git a/app/views/access_permissions/partials/_member_field.html.erb b/app/views/access_permissions/partials/_member_field.html.erb
index ee75ea869..6b3bbf8a5 100644
--- a/app/views/access_permissions/partials/_member_field.html.erb
+++ b/app/views/access_permissions/partials/_member_field.html.erb
@@ -6,7 +6,7 @@
   item_id = dom_id(user, :assignment_member)
 %>
 
-<%= form_with(model: assignment, url: update_path, method: :put, remote: true, html: { class: 'member-item', id: item_id, data: { action: 'replace-form autosave-form', object_type: :assignment_member } }) do |f| %>
+<%= form_with(model: assignment, url: update_path, method: :put, html: { class: 'member-item', id: item_id, data: { remote: true, action: 'replace-form autosave-form', object_type: :assignment_member } }) do |f| %>
   <%= f.hidden_field :user_id, value: f.object.user.id %>
     <div class="user-assignment-info">
       <div class="global-avatar-container">
diff --git a/app/views/access_permissions/partials/_new_assignments_form.html.erb b/app/views/access_permissions/partials/_new_assignments_form.html.erb
index c84342a53..d09dad7c2 100644
--- a/app/views/access_permissions/partials/_new_assignments_form.html.erb
+++ b/app/views/access_permissions/partials/_new_assignments_form.html.erb
@@ -10,7 +10,7 @@
       <%= t '.title', resource_name: assignable.name %>
     </h4>
   </div>
-  <%= form_with(url: create_path, method: :post, remote: true, html: { id: 'new-user-assignment-form', data: { object_type: assignable.class.to_s.downcase } }) do |f| %>
+  <%= form_with(url: create_path, method: :post, html: { id: 'new-user-assignment-form', data: { remote: true, object_type: assignable.class.to_s.downcase } }) do |f| %>
     <div class="modal-body">
       <div class="sci-input-container left-icon">
         <%= text_field_tag :search_users, '',
diff --git a/config/environments/development.rb b/config/environments/development.rb
index 505cdbe46..65e3aebd6 100644
--- a/config/environments/development.rb
+++ b/config/environments/development.rb
@@ -47,6 +47,10 @@ Rails.application.configure do
 
   config.action_mailer.perform_caching = false
 
+  Rails.application.routes.default_url_options = {
+    host: Rails.application.secrets.mail_server_url
+  }
+
   # Print deprecation notices to the Rails logger.
   config.active_support.deprecation = :log
 
diff --git a/config/environments/test.rb b/config/environments/test.rb
index 6ea4d1e70..e4393c56c 100644
--- a/config/environments/test.rb
+++ b/config/environments/test.rb
@@ -38,6 +38,10 @@ Rails.application.configure do
 
   config.action_mailer.perform_caching = false
 
+  Rails.application.routes.default_url_options = {
+    host: Rails.application.secrets.mail_server_url
+  }
+
   # Tell Action Mailer not to deliver emails to the real world.
   # The :test delivery method accumulates sent emails in the
   # ActionMailer::Base.deliveries array.
diff --git a/config/initializers/active_storage.rb b/config/initializers/active_storage.rb
index c43b698e4..d36bcdb2e 100644
--- a/config/initializers/active_storage.rb
+++ b/config/initializers/active_storage.rb
@@ -17,13 +17,13 @@ Rails.application.config.active_storage.variable_content_types << 'image/svg+xml
 Rails.application.config.active_storage.variant_processor = :vips if ENV['ACTIVESTORAGE_ENABLE_VIPS'] == 'true'
 
 ActiveStorage::Downloader.class_eval do
-  def open(key, checksum:, name: 'ActiveStorage-', tmpdir: nil)
+  def open(key, checksum: nil, verify: true, name: 'ActiveStorage-', tmpdir: nil)
     open_tempfile(name, tmpdir) do |file|
       download key, file
       if checksum == 'dummy' || checksum.nil?
         ActiveStorage::Blob.find_by(key: key).update(checksum: Digest::MD5.file(file).base64digest)
       else
-        verify_integrity_of file, checksum: checksum
+        verify_integrity_of(file, checksum: checksum) if verify
       end
       yield file
     end