failing tests for #741

test/runtime/samples/at-symbol-in-attribute/_config.js

@@ -0,0 +1,3 @@
+export default {
+	html: `<a href='mailto:hello@example.com'>email</a>`
+};

test/runtime/samples/at-symbol-in-attribute/main.html

@@ -0,0 +1 @@
+<a href='mailto:hello@example.com'>email</a>

test/runtime/samples/attribute-static-quotemarks/_config.js

@@ -0,0 +1,3 @@
+export default {
+	html: `<span title='"foo"'>foo</span>`
+};

test/runtime/samples/attribute-static-quotemarks/main.html

@@ -0,0 +1 @@
+<span title='"foo"'>foo</span>