MBL-2852: Include a Referrer Header in Project Campaign embedded WebViews

[tonyteate]

📲 What

Include a Referrer Header in Project Campaign embedded WebViews

🤔 Why

YouTube has recently begun enforcing a requirement that API clients that use the embedded player provide "identification" through the HTTP Referrer.

As reported in SD-4546, YouTube videos embedded within Project Campaign have stopped loading, instead displaying Error 153 Video configuration error.

🛠 How

As suggested in the Required Minimum Functionality documentation, swap WebView.loadData() for WebView.loadDataWithBaseURL(), which will send the base URL in the Referrer HTTP header.

👀 See

Before 🐛	After 🦋

📋 QA

• Review any Project Campaign with an embedded YouTube player, and confirm that the video and player are working correctly.
  • Example Project: Vectrex Mini by David "Flynn" Oghia — Kickstarter
• Review Project Campaigns with different kinds of embedded content, and confirm that the content is displayed and functioning as expected.
  • Example Project (Spotify): Rebel Joy: Help Bring Roswell Road's Debut Album To Life! by Roswell Road — Kickstarter
  • Example Project (SoundCloud): The Northwest Soundscapes Project by Andy Martin — Kickstarter

Story 📖

[MBL-2852] Include a Referrer Header in Project Campaign embedded WebViews - Jira

[Arkariang]

lgtm!