I experience same issue. The problem isn't with stock browser. Gmail app has issues with showing mail content if there are images. Usually images won't load or part of them will be loaded.
I have tried everything else to solve it. I can say for sure that the problem isn't with browser.apk. Also there is no problem with SSL as other sites work fine. I think that the problem is with webviewchromium frameworks or libs. Chrome browser uses its own libs, so no problems with Chrome. But any app using webviewchromium will fail to load content from google sites.