Place a pizza stone or sheet pan on middle oven rack. Preheat oven to 450°.
Place balsamic vinegar in small saucepan. Bring to a boil, then reduce heat and simmer 4 to 5 minutes or until reduced to half of original volume and mixture is thick and syrupy. Add strawberry preserves and sriracha and mix well. Set aside to cool.
Pat or roll out pizza dough on a lightly floured surface to approximately a 14-inch rustic circle. Place a piece of parchment paper slightly larger than your dough on a pizza peel or an upside-down sheet pan. Sprinkle parchment paper lightly with cornmeal. Fold dough in quarters and place on parchment paper, then unfold.
Combine chicken with 2 tablespoons of the balsamic–strawberry mixture and mix to coat all chicken with sauce. Pour rest of sauce onto pizza dough and spread to cover, leaving a 1-inch border around the edge. Scatter chicken evenly over sauce.
Scatter three-quarters of the cheese evenly over sauce. Scatter bacon and sweet onion over cheese to distribute evenly. Scatter remaining cheese on top.
Slide parchment paper with pizza on top onto a stone or cookie sheet. Bake for approximately 8 to 10 minutes or until cheese is bubbly and crust is golden brown. Keep an eye on the pizza—at this temperature, it is easy to burn the crust.
Remove from oven and cool 1-2 minutes. Sprinkle with chopped cilantro and fresh diced strawberries.