Snippets are not injected on Edge

Environment

ABP 0.9.15.2340
Microsoft Edge 44.17763.1.0 / Windows 10 1809

Regression compared to 0.9.17

How to reproduce

1. Follow the testing notes on https://issues.adblockplus.org/ticket/7419

Observed behavior

The script prints to the console.

Expected behavior

The script should not print to the console.