diff --git a/components/script/dom/htmlformelement.rs b/components/script/dom/htmlformelement.rs
index 27a64d00cda1..88e74bf100b5 100755
--- a/components/script/dom/htmlformelement.rs
+++ b/components/script/dom/htmlformelement.rs
@@ -606,7 +606,7 @@ impl HTMLFormElement {
         // Step 4
         for datum in &mut ret {
             match &*datum.ty {
-                "file" | "textarea" => (), // TODO
+                "file" => (), // TODO
                 _ => {
                     datum.name = clean_crlf(&datum.name);
                     datum.value = FormDatumValue::String(clean_crlf(match datum.value {
@@ -616,7 +616,6 @@ impl HTMLFormElement {
                 }
             }
         };
-        // Step 5
         ret
     }
 
diff --git a/components/script/dom/htmlinputelement.rs b/components/script/dom/htmlinputelement.rs
index f2d83fa4d548..dae5ca36b502 100755
--- a/components/script/dom/htmlinputelement.rs
+++ b/components/script/dom/htmlinputelement.rs
@@ -477,10 +477,10 @@ impl HTMLInputElementMethods for HTMLInputElement {
     // https://html.spec.whatwg.org/multipage/#dom-input-alt
     make_setter!(SetAlt, "alt");
 
-    // https://html.spec.whatwg.org/multipage/#dom-input-dirName
+    // https://html.spec.whatwg.org/multipage/#attr-fe-dirname
     make_getter!(DirName, "dirname");
 
-    // https://html.spec.whatwg.org/multipage/#dom-input-dirName
+    // https://html.spec.whatwg.org/multipage/#attr-fe-dirname
     make_setter!(SetDirName, "dirname");
 
     // https://html.spec.whatwg.org/multipage/#dom-fe-disabled
diff --git a/components/script/dom/htmltextareaelement.rs b/components/script/dom/htmltextareaelement.rs
index 459500da9a14..53fb5dec11fd 100755
--- a/components/script/dom/htmltextareaelement.rs
+++ b/components/script/dom/htmltextareaelement.rs
@@ -195,6 +195,12 @@ impl HTMLTextAreaElementMethods for HTMLTextAreaElement {
     // https://html.spec.whatwg.org/multipage/#dom-textarea-placeholder
     make_setter!(SetPlaceholder, "placeholder");
 
+    // https://html.spec.whatwg.org/multipage/#submitting-element-directionality:-the-dirname-attribute
+    make_getter!(DirName, "dirname");
+
+    // https://html.spec.whatwg.org/multipage/#submitting-element-directionality:-the-dirname-attribute
+    make_setter!(SetDirName, "dirname");
+
     // https://html.spec.whatwg.org/multipage/#attr-textarea-maxlength
     make_int_getter!(MaxLength, "maxlength", DEFAULT_MAX_LENGTH);
 
diff --git a/components/script/dom/webidls/HTMLTextAreaElement.webidl b/components/script/dom/webidls/HTMLTextAreaElement.webidl
index 3839be24f5e0..9dd4705a6054 100644
--- a/components/script/dom/webidls/HTMLTextAreaElement.webidl
+++ b/components/script/dom/webidls/HTMLTextAreaElement.webidl
@@ -11,8 +11,8 @@ interface HTMLTextAreaElement : HTMLElement {
   //          attribute boolean autofocus;
   [CEReactions, SetterThrows]
            attribute unsigned long cols;
-  // [CEReactions]
-  //          attribute DOMString dirName;
+  [CEReactions]
+           attribute DOMString dirName;
   [CEReactions]
            attribute boolean disabled;
   readonly attribute HTMLFormElement? form;
diff --git a/components/script/lib.rs b/components/script/lib.rs
index cf020ab9ac68..f1d2e116d147 100644
--- a/components/script/lib.rs
+++ b/components/script/lib.rs
@@ -95,6 +95,7 @@ extern crate swapper;
 extern crate time;
 #[cfg(target_os = "linux")]
 extern crate tinyfiledialogs;
+extern crate unicode_bidi;
 extern crate unicode_segmentation;
 extern crate url;
 extern crate utf8;