Shorten unsourcemapped absolute locations in terminal stacktraces

packages/next/src/server/patch-error-inspect.ts

@@ -31,20 +31,26 @@ function frameToString(frame: StackFrame): string {
     sourceLocation += `:${frame.column}`
   }
 
-  const filePath =
+  let fileLocation: string | null
+  if (
     frame.file !== null &&
     frame.file.startsWith('file://') &&
     URL.canParse(frame.file)
-      ? // If not relative to CWD, the path is ambiguous to IDEs and clicking will prompt to select the file first.
-        // In a multi-app repo, this leads to potentially larger file names but will make clicking snappy.
-        // There's no tradeoff for the cases where `dir` in `next dev [dir]` is omitted
-        // since relative to cwd is both the shortest and snappiest.
-        path.relative(process.cwd(), url.fileURLToPath(frame.file))
-      : frame.file
+  ) {
+    // If not relative to CWD, the path is ambiguous to IDEs and clicking will prompt to select the file first.
+    // In a multi-app repo, this leads to potentially larger file names but will make clicking snappy.
+    // There's no tradeoff for the cases where `dir` in `next dev [dir]` is omitted
+    // since relative to cwd is both the shortest and snappiest.
+    fileLocation = path.relative(process.cwd(), url.fileURLToPath(frame.file))
+  } else if (frame.file !== null && frame.file.startsWith('/')) {
+    fileLocation = path.relative(process.cwd(), frame.file)
+  } else {
+    fileLocation = frame.file
+  }
 
   return frame.methodName
-    ? `    at ${frame.methodName} (${filePath}${sourceLocation})`
-    : `    at ${filePath}${frame.lineNumber}:${frame.column}`
+    ? `    at ${frame.methodName} (${fileLocation}${sourceLocation})`
+    : `    at ${fileLocation}${sourceLocation}`
 }
 
 function computeErrorName(error: Error): string {