diff -r 000000000000 -r 6474c204b198 browser/devtools/debugger/test/browser_dbg_parser-05.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/browser/devtools/debugger/test/browser_dbg_parser-05.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,43 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+/**
+ * Check that JS code containing strings that might look like <script> tags
+ * inside an HTML source is parsed correctly.
+ */
+
+function test() {
+  let { Parser } = Cu.import("resource:///modules/devtools/Parser.jsm", {});
+
+  let source = [
+    "let a = [];",
+    "a.push('<script>');",
+    "a.push('var a = 42;');",
+    "a.push('</script>');",
+    "a.push('<script type=\"text/javascript\">');",
+    "a.push('var b = 42;');",
+    "a.push('</script>');",
+    "a.push('<script type=\"text/javascript;version=1.8\">');",
+    "a.push('var c = 42;');",
+    "a.push('</script>');"
+  ].join("\n");
+  let parser = new Parser();
+  let parsed = parser.get(source);
+
+  ok(parsed,
+    "The javascript code should be parsed correctly.");
+  is(parser.errors.length, 0,
+    "There should be no errors logged when parsing.");
+
+  is(parsed.scriptCount, 1,
+    "There should be 1 script parsed in the parent source.");
+
+  is(parsed.getScriptInfo(source.indexOf("let a")).toSource(), "({start:0, length:261, index:0})",
+    "The script location is correct (1).");
+  is(parsed.getScriptInfo(source.indexOf("<script>")).toSource(), "({start:0, length:261, index:0})",
+    "The script location is correct (2).");
+  is(parsed.getScriptInfo(source.indexOf("</script>")).toSource(), "({start:0, length:261, index:0})",
+    "The script location is correct (3).");
+
+  finish();
+}