erp5_web_js_style: display the page content even if the failover css style loading fails

6 jobs for master in 0 seconds
Status Job ID Name Coverage
  External
failed ERP5.CodingStyleTest-Master

01:57:01

failed ERP5.PerformanceTest-Master

00:43:14

failed ERP5.UnitTest-Master

04:04:52

passed SlapOS.Eggs.UnitTest-Master.Python2

00:18:38

passed SlapOS.Eggs.UnitTest-Master.Python3

00:29:47

passed Wendelin.UnitTest-Master

00:56:52