PHILADELPHIA – Doug Pederson got the loud ovation he had hoped for in his return to the city he delivered a Super Bowl, but it was his former team that got the victory. The Eagles beat Pederson’s new team, the upstart Jacksonville Jaguars, 29-21, on a miserably wet and windy Sunday afternoon at Lincoln Financial Field. They had to overcome a 14-point, first-quarter deficit to remain the lone undefeated team in the NFL at 4-0 with a date in the desert against the Arizona Cardinals next weekend. Once again, it was a second-quarter onslaught by the offense that got the…