API test TestWebKitAPI.ServiceWorkers.ProcessPerSession is consistently timing out on EWS bots which are on Catalina 10.15.1 (19B88). It passes on EWS bots which are on Mojave and on build.webkit.org bots which are on 10.15 (19A603). e.g.: https://ews-build.webkit.org/#/builders/9/builds/11629 https://ews-build.webkit.org/#/builders/9/builds/11622 https://ews-build.webkit.org/#/builders/9/builds/11616
This test was added in http://trac.webkit.org/changeset/249853/webkit
<rdar://problem/56980998>
It was due to a configuration issue which started happening after updating the bots to Catalina.