Remove the slash, as suggested

Author: kuklau-trenz

Blazor.PWA.MSBuild.Tasks/build/BlazorPWA.MSBuild.ServiceWorker.targets

@@ -105,7 +105,7 @@
     <WriteLinesToFile Condition="'$(BlazorProjectType)' == 'CSB'"
                       File="$(WWWRoot)$(ServiceWorkerFileName)"
                       Overwrite="false"
-                      Lines="const requiredFiles = [;@(DistFiles -> '&quot;/$(ServiceWorkerBaseUrl)%(RecursiveDir)%(FileName)%(Extension)&quot;'->Replace('\','/'),',%0D%0A');]%3B;" />
+                      Lines="const requiredFiles = [;@(DistFiles -> '&quot;$(ServiceWorkerBaseUrl)%(RecursiveDir)%(FileName)%(Extension)&quot;'->Replace('\','/'),',%0D%0A');]%3B;" />
     <WriteLinesToFile Condition="'$(BlazorProjectType)' == 'CSB'"
                       File="$(WWWRoot)$(ServiceWorkerFileName)"
                       Overwrite="false"