Hello, I found very different behaviour today between chrome,brave & firefox,firefoxdevedition with javascript and button. As visible on the screenshots the button is created with its attributes GET and target profile.html via jinja2 templating. But in addition, via javascript, I added a function to post the selected tables to a route called SaveToDatabase. In chrome the js part gets executed and profile.html is loaded, but in firefox based browsers ONLY the js POST is executed and nothing else happens. What could the problem here be? Best regards and thank you in advance.