Flask Redirect New Tab

As far as I know that would not be a flask issue. You have to open a new tab within your html code or with Javascript.

example: <a href="http://mylink.com" target="_blank">Link</a>

The server has no power over what the browser does in this case.

You could also use Python's webbrowser module to open a page, if you'd like to avoid getting into the HTML

import webbrowser

@app.route('/test')
def my_page():
    return webbrowser.open_new_tab('http://mylink.com')

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