The 37-year old was let go by the Quakes in 2010 before being picked up by the Whitecaps in that year's Expansion Draft and he has resurrected his career in Canada when many thought he may be finished.
Ahead of Vancouver's trip to Buck Shaw Stadium on Saturday, Cannon is looking forward to being back in familiar surroundings and playing in front of some true soccer supporters.
"There are a lot of fans there that still care," Cannon told the Mercury News. "They're very passionate and they're very supportive, and so I don't get it as bad from the opposite team."
The Whitecaps defense have kept four clean sheets from four starts this season with Cannon starting all four matches, although he had to be subbed out with injury in the 1-0 win over Chivas USA a few weeks back, but he is not getting carried away with any talk of shut-out records.
"You can't rest on your laurels in this league," he added. "I don't think any of us are really thinking about a streak or anything, because we're going into a hostile environment in San Jose, and we need to get a point any way we can."