Update URL and delete state when going back to editor

web/index.html

@@ -99,7 +99,7 @@
 				<h1></h1>
 				<h3 class="totaltimer">0:00</h3>
 				<input type="button" value="Restart" onclick="reStartQuiz()" class="center">
-				<input type="button" value="Create New Quiz" onclick="changeView('spreadsheet')" class="center">
+				<input type="button" value="Create New Quiz" onclick="deleteQuiz()" class="center">
 			</div>
 
 		</main>

web/quiz.js

@@ -372,6 +372,15 @@ function abortQuiz() {
 }
 
 
+function deleteQuiz() {
+
+	clearState()
+	removeLink()
+	changeView('spreadsheet')
+
+}
+
+
 window.onload = async function() {
 
 	var browserWarning = document.getElementById('browserwarning')

web/share.js

@@ -14,6 +14,9 @@ function showLink() {
 
 function removeLink() {
 
+	var link = location.origin
+	history.pushState('', '', link)
+
 	var linkEl = document.getElementById('shareLink')
 	linkEl.href = ''
 	linkEl.innerHTML = ''