fix(coverage): v8 to completely ignore CSS requests, just like istanbul

Author: AriPerkkio

packages/coverage-v8/src/provider.ts

@@ -19,7 +19,7 @@ import { provider } from 'std-env'
 
 import c from 'tinyrainbow'
 import { BaseCoverageProvider } from 'vitest/coverage'
-import { parseAstAsync } from 'vitest/node'
+import { isCSSRequest, parseAstAsync } from 'vitest/node'
 import { version } from '../package.json' with { type: 'json' }
 
 export interface ScriptCoverageWithOffset extends Profiler.ScriptCoverage {
@@ -397,7 +397,14 @@ export class V8CoverageProvider extends BaseCoverageProvider<ResolvedCoverageOpt
         }
       }
 
-      if (this.isIncluded(fileURLToPath(result.url))) {
+      if (
+        this.isIncluded(fileURLToPath(result.url))
+
+        // Ignore CSS requests, e.g. in Vue.
+        // File extension itself is .vue, but it contains CSS.
+        // e.g. "Example.vue?vue&type=style&index=0&scoped=f7f04e08&lang.css"
+        && !isCSSRequest(result.url)
+      ) {
         scriptCoverages.push(result)
       }
     }