Change run_at property of privly.js?

[breezewish]

Currently manifest.json doesn't specify a run_at property for privly.js, which means it will run at document_idle.

In poor network conditions, for example, while loading a script blocks(defers) the document_end and document_idle, privly.js injection will not be executed at the moment while the content has already been shown.

https://www.dropbox.com/s/cv5if1v2pnujch3/privly_2.mp4?dl=0

Change run_at to document_start may prevent this issue.

[smcgregor]

I experimented with this a while back and it caused more issues than it solved for me. Can you turn it on for yourself and see if this is still the case? I'll re-evaluate if you continue to support the change after a week.

[breezewish]

I think there are more than just change the manifest.json. I will check the code.

[smcgregor]

Downgraded to minor.