fix splitCssText and another attempt at labelling versions (#26)

Author: pauldambra

.github/workflows/label-version-bump.yml

@@ -56,7 +56,7 @@ jobs:
               if: steps.bump-type.outputs.bump-type != 'null'
               run: |
                   OLD_VERSION=$(jq ".version" package.json -r)
-                  NEW_VERSION=$(yarn run semver $OLD_VERSION -i ${{ steps.bump-type.outputs.bump-type }})
+                  NEW_VERSION=$(semver $OLD_VERSION -i ${{ steps.bump-type.outputs.bump-type }})
                   echo "old-version=$OLD_VERSION" >> "$GITHUB_OUTPUT"
                   echo "new-version=$NEW_VERSION" >> "$GITHUB_OUTPUT"
 

packages/rrweb-snapshot/src/utils.ts

@@ -474,12 +474,12 @@ export function splitCssText(
   cssText: string,
   style: HTMLStyleElement,
 ): string[] {
+  const og = cssText;
   if (splitCache.has(cssText)) {
     // we know there's a result
     // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
     return splitCache.get(cssText)!;
   }
-  const og = cssText;
   const childNodes = Array.from(style.childNodes);
   const splits: string[] = [];
   let iterLimit = 0;
@@ -554,7 +554,9 @@ export function splitCssText(
     }
   }
   splits.push(cssText); // either the full thing if no splits were found, or the last split
-  splitCache.set(og, splits);
+  if (og) {
+    splitCache.set(og, splits);
+  }
   return splits;
 }