bundle install
➡️ Then to reproduce run rails test
app/mailers/repro_mailer.rb
app/views/repro_mailer/repro_email.erb
test/mailers/repro_mailer_test.rb
Note that mailer previews do not show the issue 🤔
sfcgeorge/email_query_repro
When generated within emails, ampersands in URL query params are mistakenly HTML escaped into the entity `&` which breaks the links.
Ruby