Catch more SSR issues and improve compat tests (#353)

This will cause the build to fail, as this will catch an SSR issue, which will be fixed after merging #369

theatre/studio/src/utils/tightJsonStringify.test.ts

@@ -3,25 +3,25 @@ describe('tightJsonStringify', () => {
   it('matches a series of expectations', () => {
     expect(tightJsonStringify({a: 1, b: 2, c: {y: 4, z: 745}}))
       .toMatchInlineSnapshot(`
-      "{ \\"a\\": 1,
-        \\"b\\": 2,
-        \\"c\\": {
-          \\"y\\": 4,
-          \\"z\\": 745 } }"
+      "{ "a": 1,
+        "b": 2,
+        "c": {
+          "y": 4,
+          "z": 745 } }"
     `)
     expect(tightJsonStringify(true)).toMatchInlineSnapshot(`"true"`)
     expect(tightJsonStringify('Already a string')).toMatchInlineSnapshot(
-      `"\\"Already a string\\""`,
+      `""Already a string""`,
     )
     expect(tightJsonStringify({a: 1, b: {c: [1, 2, {d: 4}], e: 8}}))
       .toMatchInlineSnapshot(`
-      "{ \\"a\\": 1,
-        \\"b\\": {
-          \\"c\\": [
+      "{ "a": 1,
+        "b": {
+          "c": [
             1,
             2,
-            { \\"d\\": 4 } ],
-          \\"e\\": 8 } }"
+            { "d": 4 } ],
+          "e": 8 } }"
     `)
   })
 })