Direct Graph Link have no solid background in Chrome

Hello,

I encountered this issue, where the solid background is missing in Chrome Browser (Chromium Browsers) when viewing with Direct Graph link.Hence Graph legends are unreadable (merges with Black)

Reproduce error:

1) When user views Graph (through the graph link) in Chrome or Chromium Browser.

I have attached the comparison with IE and Firefox vs Chrome 85 (latest). Also tested on Chromium Developer Build v88.