Some browsers like chrome, will get network resource errors if there are too many network requests at once (usually around 1000 on my Macbook Pro). This will need to network errors and some assets not being loaded.

Projects that are commonly affected by this are those that preload many assets at once (eg https://www.warbands.io/)

Perhaps we should throttle the number (as a project option?) that are currently in flight to reduce possible errors on devices?