Somewhere in page, I use
onclick="window.showModalDialog("http://rauf-thecoder.blogspot.com/");" .
It will show the following.

How can I remove the Webpage Dialog text from the title bar 🙁 I am happy to use jQuery too.
Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please briefly explain why you feel this question should be reported.
Please briefly explain why you feel this answer should be reported.
Please briefly explain why you feel this user should be reported.
You cannot remove it (it’s kind of a visual cue to the user that they are still in a web browser) as it displays the
<title>tag of the page they are on. So obviously you cannot remove it if you display a site that you do not control.If it’s your web page that you control, just pad the
<title>tag with spaces, or invisible characters until it pushes “Webpage Dialog” off screen inside the title bar.