Q: Fail to load page with JavaScript on Safari

I have a NAS and I can access it by loading a page on Safari.  But recently it doesn't work suddenly and just show an error message "Cannot load this page, please allow the browser to execute JavaScript".

I have not updated the Mac OS (it's been Marverick for long time) and I have enable the JavaScript in Safari preference already.  I've try reinstall the Safari (by reinstall the Mac OS) and reinstall the Java but still didn't work.

Strange thing is I then download the Chrome browser and it works fine.  Only Safari fails. 

Does anyone know what's happening?

Thank you.