1 files changed, 20 insertions, 0 deletions
diff --git a/dom/html/test/formSubmission_chrome.js b/dom/html/test/formSubmission_chrome.js
new file mode 100644
index 0000000000..da1224d107
--- /dev/null
+++ b/dom/html/test/formSubmission_chrome.js
@@ -0,0 +1,20 @@
+/* eslint-env mozilla/chrome-script */
+
+// eslint-disable-next-line mozilla/reject-importGlobalProperties
+Cu.importGlobalProperties(["File"]);
+
+addMessageListener("files.open", function (message) {
+  let list = [];
+  let promises = [];
+  for (let path of message) {
+    promises.push(
+      File.createFromFileName(path).then(file => {
+        list.push(file);
+      })
+    );
+  }
+
+  Promise.all(promises).then(() => {
+    sendAsyncMessage("files.opened", list);
+  });
+});