diff --git a/crates/swc_html_minifier/src/lib.rs b/crates/swc_html_minifier/src/lib.rs
index e415928e6ae..63b73f72151 100644
--- a/crates/swc_html_minifier/src/lib.rs
+++ b/crates/swc_html_minifier/src/lib.rs
@@ -368,8 +368,6 @@ impl VisitMut for Minifier {
return true;
}
- let is_empty_value = (&*attribute.value.as_ref().unwrap()).trim().is_empty();
-
if self.is_default_attribute_value(
n.namespace,
&n.tag_name,
@@ -386,12 +384,16 @@ impl VisitMut for Minifier {
}
_ => attribute.value.as_ref().unwrap(),
},
- ) || (matches!(&*attribute.name, "id" | "class" | "style") && is_empty_value)
- {
+ ) {
return false;
}
- if self.is_event_handler_attribute(&attribute.name) && is_empty_value {
+ let value = &*attribute.value.as_ref().unwrap();
+
+ if (matches!(&*attribute.name, "id") && value.is_empty())
+ || (matches!(&*attribute.name, "class" | "style") && value.trim().is_empty())
+ || self.is_event_handler_attribute(&attribute.name) && value.trim().is_empty()
+ {
return false;
}
diff --git a/crates/swc_html_minifier/tests/fixture/attribute/empty-attributes/input.html b/crates/swc_html_minifier/tests/fixture/attribute/empty-attributes/input.html
new file mode 100644
index 00000000000..6fef2003842
--- /dev/null
+++ b/crates/swc_html_minifier/tests/fixture/attribute/empty-attributes/input.html
@@ -0,0 +1,20 @@
+
+
+
+ Document
+
+
+test
+test
+
+test
+test
+
+test
+test
+test
+test
+test
+
+
+
\ No newline at end of file
diff --git a/crates/swc_html_minifier/tests/fixture/attribute/empty-attributes/output.min.html b/crates/swc_html_minifier/tests/fixture/attribute/empty-attributes/output.min.html
new file mode 100644
index 00000000000..c941e4e9405
--- /dev/null
+++ b/crates/swc_html_minifier/tests/fixture/attribute/empty-attributes/output.min.html
@@ -0,0 +1,15 @@
+Document
+
+test
+test
+
+test
+test
+
+test
+test
+test
+test
+test
+
+