Causes huge CPU/memory usage on some sites

[andrewducker]

Open this site in Firefox

with UTM turned on:
http://www.independent.co.uk/voices/41-per-cent-trans-transgender-trans-women-prisoners-sex-offenders-false-study-statistic-this-is-why-a8072431.html

Notice that CPU and memory both shoot up.

It seems to be trying to make requests that are then failing, as part of the general run of the page. I've attached an example.
ExampleRequest.txt

[troxler]

@andrewducker Why do you think this is related to au-revoir-utm? Try to open that website in a clean (i.e. no addons) Chrome profile and the same thing happens. That site is just badly done with a lot of scripts, ads, and background tasks.

[andrewducker]

If I open that page without the extension it causes a spike in CPU and memory and then quietens down again.

If I do it with the extension enabled it causes a spike and then the CPU usage stays constant, and memory keeps cycling up and down by a huge amount. And this will carry on indefinitely.

Would it help if I did some digging?

[jarredou]

Same problem here with when I open a blank tab (happens on various others pages too)

[rik]

I really can't tell what the issue is here. Are you still seing this problem?

[jarredou]

Hi, sorry, but I'm not using the extension anymore, the problem was still present when I've switched to an alternative, few days after I left my previous message.
Often, the bug was occuring on the facebook redirecting page ("https://l.facebook.com/l.php?u=") on my side, if it can help.