Contract source code fails to load
Describe the bug
I've seen this a few times but not consistently, when loading a contract call tx in the explorer, the source code box is blank and clicking on the number of lines fails to expand.

The image above comes from this tx on testnet, and the console shows some 404s:

This time around I'm seeing it after a few refreshes though it normally resolves after the first one, or if I wait some time before refreshing.
To Reproduce
When it happens, it only requires viewing a transaction in the explorer, possibly in other places that show contract code as well.
Expected behavior
It should show the contract code instead of a blank black box :detective:
Desktop (please complete the following information):
- OS: Linux Mint 20.3
- Browser: Brave
- Version: 1.40.107 Chromium: 103.0.5060.53 (Official Build) (64-bit)
Additional context
If I catch it again I'll try to add more info!