<!DOCTYPE html> <html> <!-- https://bugzilla.mozilla.org/show_bug.cgi?id=618017 Parsing XML must not override the version. --> <head> <title>Test for Bug 618017</title> <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script> <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/> </head> <body> <script type='application/javascript;version=1.7'> let x = 12; function doLetEval() { ok(eval('let x = 13; x') === 13, 'let statement is valid syntax in version 1.7'); } </script> <script type='application/javascript;version=1.5'> doLetEval(); // Call to a function with a different version. </script> </body> </html>