I had this problem with snort. Saving them in the browser extension solved this for me.
Discussion
Which extension?
I use the nos2x extension.
Firefox (Mullvad Browser, LibreWolf): https://addons.mozilla.org/en-US/firefox/addon/nos2x-fox/
Chrome (Ungoogled): https://chrome.google.com/webstore/detail/nos2x/kpgefcfmnafjgpblomihpgmejjdanjjp