1 files changed, 24 insertions, 0 deletions
diff --git a/docshell/test/browser/browser_bug1716290-4.js b/docshell/test/browser/browser_bug1716290-4.js
new file mode 100644
index 0000000000..ab0d46d7ff
--- /dev/null
+++ b/docshell/test/browser/browser_bug1716290-4.js
@@ -0,0 +1,24 @@
+function test() {
+  var rootDir = "http://mochi.test:8888/browser/docshell/test/browser/";
+  runCharsetTest(
+    rootDir + "file_bug1716290-4.sjs",
+    afterOpen,
+    afterChangeCharset
+  );
+}
+
+function afterOpen() {
+  is(
+    content.document.characterSet,
+    "Shift_JIS",
+    "Doc should report Shift_JIS initially"
+  );
+}
+
+function afterChangeCharset() {
+  is(
+    content.document.characterSet,
+    "UTF-16BE",
+    "Doc should report UTF-16BE subsequently (BOM should override detector)"
+  );
+}