A friend shared a webpage which was supposed to render a Tableau visualization. However, when I opened that URL in my Firefox browser, I got an empty page.
At first, I suspected that one of my many Firefox extensions was blocking the Tableau visualization. I disabled all extensions and the webpage was still empty.
I decided to check out the HTML source of the webpage by right-clicking on the page and choosing View Page Source. I saw that the HTML was pretty simple. The main suspect seemed to be a
Time to break out the Developer Tools in Firefox by pressing
So Firefox is protecting me. That's good, but I knew the URL from my friend is safe and I wanted to really see that visualization.
Might there be a security setting that I could disable? Turns out there is. Head over to
about:config in Firefox and toggle the
security.mixed_content.block_active_content setting from
Voila, I could see my Tableau visualization after this!
Tried with: Firefox 68 and Ubuntu 18.04