Unfortunatley running a bookmarklet this way in mobile Chrome on Android is not supported. Hopefully Google will fix it one day. Instead please follow the below steps to to run the bookmarklet and to add a bookmark to Ninja:
- Tap on Chrome's URL field
- Type "add"
- Suggestions will popup, tap on the "Add to Ninja" bookmarklet (starts with "javascript: ")
- The "Add bookmark" window will come up
- Select Catalog or Dashboard with the destination Tab/Category
- Optionally add tags and notes
- Tap on "Add Bookmark" to add the bookmark to Ninja