diff --git a/lib/parse-styles.js b/lib/parse-styles.js
index 6eb5f497..f6a67078 100644
--- a/lib/parse-styles.js
+++ b/lib/parse-styles.js
@@ -21,7 +21,7 @@ async function parseStyles(
 
   for (const stmt of statements) {
     // skip protocol base uri (protocol://url) or protocol-relative
-    if (stmt.type !== "import" || /^(?:[a-z]+:)?\/\//i.test(stmt.uri)) {
+    if (stmt.type !== "import" || !isProcessableURL(stmt.uri)) {
       continue
     }
 
@@ -219,4 +219,25 @@ function createStmtDuplicateCheckKey(stmt) {
   )
 }
 
+function isProcessableURL(uri) {
+  if (/^(?:[a-z]+:)?\/\//i.test(uri)) {
+    return false
+  }
+
+  try {
+    // needs a base to parse properly
+    const url = new URL(uri, "https://example.com")
+
+    if (url.hash) {
+      return false
+    }
+
+    if (url.search) {
+      return false
+    }
+  } catch {} // Ignore
+
+  return true
+}
+
 module.exports = parseStyles