Yes, i tried this a few times but not work for me :-(Did you try exactly what I suggested? That was the same problem I had.
On your iPhone:
Go to Settings ---> iCloud ---> Safari (Turn from ON to OFF)
You will see the message, "What would you like to do with the previously synced iCloud Safari data on your iPhone?"
Choose "Delete from My iPhone"
Then turn Safari from OFF to ON to begin syncing again.
Once I completed these steps, my tabs began syncing again.