Hooks for sentry integration (#1460)

* add sentry webpack plugin

* allow override of webpack config

* work around cheerio inability to parse jinga templates

* webpack can not minify jinja templates

* allow script injection to specify other attributes

* allow script injection to specify other attributes

* Adjustments to make plugin systems work

* Add sourcemaps for javascript in prod webpack

* Update .gitignore

* Fix spelling errors

Co-authored-by: Matt Weiden <538456+mweiden@users.noreply.github.com>

server/eb/app.py

@@ -60,6 +60,7 @@ class WSGIServer(Server):
         script_hashes, style_hashes = WSGIServer.get_csp_hashes(app, app_config)
         csp = {
             "default-src": ["'self'"],
+            "connect-src": ["'self'"],
             "script-src": ["'self'", "'unsafe-eval'", "'unsafe-inline'"] + script_hashes,
             "style-src": ["'self'", "'unsafe-inline'"] + style_hashes,
             "img-src": ["'self'", "data:"],