Canon SX70 HS off camera flash triggering?

I'be been using the SX50 for about 6 years, and liking it a lot, but I took a fall and broke it. Rather than having it fixed, I was already wanting to move up to get the higher resolution, (12mp ^ 20.3mp) so went ahead and bought the SX70. On the old camera I had a hot-shoe that I could put the Canon 90EX flash as master to 270EX as a slave, if I wanted to back-light my subject. Since the SX70 doesn't have either a hot shoe, nor any way to even plug in a tethered flash, I'm out of luck.

Do any of you know how to trigger a slave with this camera? I have not gotten the wi-fi going yet, is there any way to do it in there with blue-tooth?

Would this work?

https://www.photo24.co​.uk …r-canon-powershot-sx70-hs

With neither a flash hotshoe for an external flash, nor a PC cord connection point, there is no direct way to trigger a remote flash unless the remote flash (or trigger unit) had an Optical Slave triggering mode that would cause it to flash when the light from the camera's built-in flash is detected.