support empty rootURL with Ember CLI >= 5.0#196

jelhan wants to merge 2 commits into

ember-cli:masterember-cli/ember-cli-inject-live-reload:masterfrom

jelhan:support-empty-root-url-with-ember-cli-5.0jelhan/ember-cli-inject-live-reload:support-empty-root-url-with-ember-cli-5.0Copy head branch name to clipboard