1713711 - Update the ETP shim for Facebook SDK

Status: NEW

(Core :: Privacy: Anti-Tracking, enhancement)

Description

[Thomas Wisniewski [:twisniewski]]

There are a number of quality-of-life improvements we can make:

• making sure there is no window object pollution from functions which might as well be private.
• improving the shim/unshim proxy mechanism to be a bit more robust and thorough.
• using more more Javascript style to increase readability.
• catching exceptions a bit more for better control of error flow.

In addition, it might be possible to add experimental support for placeholders for more types of Facebook content like video, as well as improving the video placeholder support.