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Similar todos
URL colors validation 
#createpin
add error alert to dashboard if url is wrong #thx
friendly error pages 
#chamados
Add error page instead of black page 
#simpleanalytics
Show error on invalid coupon 
#sitesauce
Show error on invalid coupon #sitesauce
Show error message on login failure 
#devhub
fix 404 colors 
#pasfoto
custom error pages 
#buildingo
custom error pages 
#tba
show error/empty messages 
#cssscan
Fix white error page #simpleanalytics
Show proper error message in JSON when user makes bad request 
#pushmore
improved error page for seo 
#sportstechjobs
error pages for 
#currently web