What could be causing 500 errors when saving user preferences?

[tkrunning (Thomas K. Running)]

So I guess it might actually have been this error:

I figured that one was just showing up due to this issue:

Composer previews not working in Safari

Now only one error showed up, but here it is expanded: [CleanShot 2023-08-03 at 09.53.18@2x] However, that might be a good hint, as I also ran into this Safari issue when adding in a regex with negative lookbehind recently. My Safari is at 16.3. I’ll try upgrading it to 16.6 and see if that solves it. EDIT: I see that negative lookbehinds are only supported from 16.4, so the update should be likely to fix my previous issue—let’s see if this issue is related. However, I’m a bit concerned tha…

However, it turns out it’s all related.

Here are the full logs:

Info:

RegexpError (invalid pattern in look-behind: /((?<!estonia.*\s)\be-residence\b(?!.*estonia))/i)
app/services/word_watcher.rb:264:in `initialize'
app/services/word_watcher.rb:264:in `new'
app/services/word_watcher.rb:264:in `block in replace'
app/services/word_watcher.rb:262:in `each'
app/services/word_watcher.rb:262:in `reduce'
app/services/word_watcher.rb:262:in `replace'
app/services/word_watcher.rb:149:in `replace_link'
app/services/word_watcher.rb:155:in `apply_to_text'
app/models/user_profile.rb:194:in `apply_watched_words'
app/services/user_updater.rb:242:in `block in update'
app/services/user_updater.rb:197:in `update'
app/controllers/users_controller.rb:250:in `block in update'
app/controllers/application_controller.rb:748:in `json_result'
app/controllers/users_controller.rb:244:in `update'
app/controllers/application_controller.rb:420:in `block in with_resolved_locale'
app/controllers/application_controller.rb:420:in `with_resolved_locale'
lib/middleware/omniauth_bypass_middleware.rb:74:in `call'
lib/content_security_policy/middleware.rb:12:in `call'
lib/middleware/anonymous_cache.rb:389:in `call'
lib/middleware/gtm_script_nonce_injector.rb:10:in `call'
config/initializers/008-rack-cors.rb:24:in `call'
config/initializers/100-quiet_logger.rb:20:in `call'
config/initializers/100-silence_logger.rb:29:in `call'
lib/middleware/enforce_hostname.rb:24:in `call'
lib/middleware/request_tracker.rb:233:in `call'

Backtrace:

app/services/word_watcher.rb:264:in `initialize'
app/services/word_watcher.rb:264:in `new'
app/services/word_watcher.rb:264:in `block in replace'
app/services/word_watcher.rb:262:in `each'
app/services/word_watcher.rb:262:in `reduce'
app/services/word_watcher.rb:262:in `replace'
app/services/word_watcher.rb:149:in `replace_link'
app/services/word_watcher.rb:155:in `apply_to_text'
app/models/user_profile.rb:194:in `apply_watched_words'
activesupport (7.0.5.1) lib/active_support/callbacks.rb:400:in `block in make_lambda'
activesupport (7.0.5.1) lib/active_support/callbacks.rb:180:in `block (2 levels) in halting_and_conditional'
activesupport (7.0.5.1) lib/active_support/callbacks.rb:687:in `block (2 levels) in default_terminator'
activesupport (7.0.5.1) lib/active_support/callbacks.rb:686:in `catch'
activesupport (7.0.5.1) lib/active_support/callbacks.rb:686:in `block in default_terminator'
activesupport (7.0.5.1) lib/active_support/callbacks.rb:181:in `block in halting_and_conditional'
activesupport (7.0.5.1) lib/active_support/callbacks.rb:595:in `block in invoke_before'
activesupport (7.0.5.1) lib/active_support/callbacks.rb:595:in `each'
activesupport (7.0.5.1) lib/active_support/callbacks.rb:595:in `invoke_before'
activesupport (7.0.5.1) lib/active_support/callbacks.rb:116:in `block in run_callbacks'
activerecord (7.0.5.1) lib/active_record/autosave_association.rb:370:in `around_save_collection_association'
activesupport (7.0.5.1) lib/active_support/callbacks.rb:127:in `block in run_callbacks'
activesupport (7.0.5.1) lib/active_support/callbacks.rb:138:in `run_callbacks'
activesupport (7.0.5.1) lib/active_support/callbacks.rb:929:in `_run_save_callbacks'
activerecord (7.0.5.1) lib/active_record/callbacks.rb:455:in `create_or_update'
activerecord (7.0.5.1) lib/active_record/timestamp.rb:126:in `create_or_update'
activerecord (7.0.5.1) lib/active_record/persistence.rb:615:in `save'
activerecord (7.0.5.1) lib/active_record/validations.rb:47:in `save'
activerecord (7.0.5.1) lib/active_record/transactions.rb:298:in `block in save'
activerecord (7.0.5.1) lib/active_record/transactions.rb:354:in `block in with_transaction_returning_status'
activerecord (7.0.5.1) lib/active_record/connection_adapters/abstract/database_statements.rb:314:in `transaction'
activerecord (7.0.5.1) lib/active_record/transactions.rb:350:in `with_transaction_returning_status'
activerecord (7.0.5.1) lib/active_record/transactions.rb:298:in `save'
activerecord (7.0.5.1) lib/active_record/suppressor.rb:50:in `save'
app/services/user_updater.rb:242:in `block in update'
activerecord (7.0.5.1) lib/active_record/connection_adapters/abstract/transaction.rb:319:in `block in within_new_transaction'
activesupport (7.0.5.1) lib/active_support/concurrency/load_interlock_aware_monitor.rb:25:in `handle_interrupt'
activesupport (7.0.5.1) lib/active_support/concurrency/load_interlock_aware_monitor.rb:25:in `block in synchronize'
activesupport (7.0.5.1) lib/active_support/concurrency/load_interlock_aware_monitor.rb:21:in `handle_interrupt'
activesupport (7.0.5.1) lib/active_support/concurrency/load_interlock_aware_monitor.rb:21:in `synchronize'
activerecord (7.0.5.1) lib/active_record/connection_adapters/abstract/transaction.rb:317:in `within_new_transaction'
activerecord (7.0.5.1) lib/active_record/connection_adapters/abstract/database_statements.rb:316:in `transaction'
activerecord (7.0.5.1) lib/active_record/transactions.rb:209:in `transaction'
app/services/user_updater.rb:197:in `update'
app/controllers/users_controller.rb:250:in `block in update'
app/controllers/application_controller.rb:748:in `json_result'
app/controllers/users_controller.rb:244:in `update'
actionpack (7.0.5.1) lib/action_controller/metal/basic_implicit_render.rb:6:in `send_action'
actionpack (7.0.5.1) lib/abstract_controller/base.rb:215:in `process_action'
actionpack (7.0.5.1) lib/action_controller/metal/rendering.rb:165:in `process_action'
actionpack (7.0.5.1) lib/abstract_controller/callbacks.rb:234:in `block in process_action'
activesupport (7.0.5.1) lib/active_support/callbacks.rb:118:in `block in run_callbacks'
app/controllers/application_controller.rb:420:in `block in with_resolved_locale'
i18n (1.14.1) lib/i18n.rb:322:in `with_locale'
app/controllers/application_controller.rb:420:in `with_resolved_locale'
activesupport (7.0.5.1) lib/active_support/callbacks.rb:127:in `block in run_callbacks'
activesupport (7.0.5.1) lib/active_support/callbacks.rb:138:in `run_callbacks'
actionpack (7.0.5.1) lib/abstract_controller/callbacks.rb:233:in `process_action'
actionpack (7.0.5.1) lib/action_controller/metal/rescue.rb:22:in `process_action'
actionpack (7.0.5.1) lib/action_controller/metal/instrumentation.rb:67:in `block in process_action'
activesupport (7.0.5.1) lib/active_support/notifications.rb:206:in `block in instrument'
activesupport (7.0.5.1) lib/active_support/notifications/instrumenter.rb:24:in `instrument'
activesupport (7.0.5.1) lib/active_support/notifications.rb:206:in `instrument'
actionpack (7.0.5.1) lib/action_controller/metal/instrumentation.rb:66:in `process_action'
actionpack (7.0.5.1) lib/action_controller/metal/params_wrapper.rb:259:in `process_action'
activerecord (7.0.5.1) lib/active_record/railties/controller_runtime.rb:27:in `process_action'
actionpack (7.0.5.1) lib/abstract_controller/base.rb:151:in `process'
actionview (7.0.5.1) lib/action_view/rendering.rb:39:in `process'
rack-mini-profiler (3.1.1) lib/mini_profiler/profiling_methods.rb:111:in `block in profile_method'  
actionpack (7.0.5.1) lib/action_controller/metal.rb:188:in `dispatch'
actionpack (7.0.5.1) lib/action_controller/metal.rb:251:in `dispatch'
actionpack (7.0.5.1) lib/action_dispatch/routing/route_set.rb:49:in `dispatch'
actionpack (7.0.5.1) lib/action_dispatch/routing/route_set.rb:32:in `serve'
actionpack (7.0.5.1) lib/action_dispatch/journey/router.rb:50:in `block in serve'
actionpack (7.0.5.1) lib/action_dispatch/journey/router.rb:32:in `each'
actionpack (7.0.5.1) lib/action_dispatch/journey/router.rb:32:in `serve'
actionpack (7.0.5.1) lib/action_dispatch/routing/route_set.rb:852:in `call'
lib/middleware/omniauth_bypass_middleware.rb:74:in `call'
rack (2.2.8) lib/rack/tempfile_reaper.rb:15:in `call'
rack (2.2.8) lib/rack/conditional_get.rb:40:in `call'
rack (2.2.8) lib/rack/head.rb:12:in `call'
actionpack (7.0.5.1) lib/action_dispatch/http/permissions_policy.rb:38:in `call'
lib/content_security_policy/middleware.rb:12:in `call'
lib/middleware/anonymous_cache.rb:389:in `call'
lib/middleware/gtm_script_nonce_injector.rb:10:in `call'
config/initializers/008-rack-cors.rb:24:in `call'
rack (2.2.8) lib/rack/session/abstract/id.rb:266:in `context'
rack (2.2.8) lib/rack/session/abstract/id.rb:260:in `call'
actionpack (7.0.5.1) lib/action_dispatch/middleware/cookies.rb:704:in `call'
actionpack (7.0.5.1) lib/action_dispatch/middleware/callbacks.rb:27:in `block in call'
activesupport (7.0.5.1) lib/active_support/callbacks.rb:99:in `run_callbacks'
actionpack (7.0.5.1) lib/action_dispatch/middleware/callbacks.rb:26:in `call'
actionpack (7.0.5.1) lib/action_dispatch/middleware/debug_exceptions.rb:28:in `call'
actionpack (7.0.5.1) lib/action_dispatch/middleware/show_exceptions.rb:26:in `call'
logster (2.12.2) lib/logster/middleware/reporter.rb:43:in `call'
railties (7.0.5.1) lib/rails/rack/logger.rb:40:in `call_app'
railties (7.0.5.1) lib/rails/rack/logger.rb:27:in `call'
config/initializers/100-quiet_logger.rb:20:in `call'
config/initializers/100-silence_logger.rb:29:in `call'
actionpack (7.0.5.1) lib/action_dispatch/middleware/remote_ip.rb:93:in `call'
actionpack (7.0.5.1) lib/action_dispatch/middleware/request_id.rb:26:in `call'
lib/middleware/enforce_hostname.rb:24:in `call'
rack (2.2.8) lib/rack/method_override.rb:24:in `call'
actionpack (7.0.5.1) lib/action_dispatch/middleware/executor.rb:14:in `call'
rack (2.2.8) lib/rack/sendfile.rb:110:in `call'
actionpack (7.0.5.1) lib/action_dispatch/middleware/host_authorization.rb:131:in `call'
rack-mini-profiler (3.1.1) lib/mini_profiler.rb:413:in `call'
message_bus (4.3.7) lib/message_bus/rack/middleware.rb:60:in `call'
lib/middleware/request_tracker.rb:233:in `call'
railties (7.0.5.1) lib/rails/engine.rb:530:in `call'
railties (7.0.5.1) lib/rails/

Removing the regex from Watched Words > Link fixes the issue. However, that means this issue is still unresolved:

Negative lookbehind not working in watched words regex

Interestingly, it seems to be browser-dependent. I get the error in Safari, but not in Chrome. When adding it in Chrome and viewing the list in Safari the error shows up there. But I guess I can just ignore it for now.

Note that the regex is valid according to the ECMA 2018 standard, but maybe not by Ruby’s regex standard?

The regex also works as expected for posts on the forum.