Bug 1571318 Comment 3 Edit History

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Original comment by
on 
(In reply to Gabriel [:gl] (ΦωΦ) from comment #2)
> This does not appear to be a regression. It seems we are running into a CSP when calling `setAttribute` for an iframe in [EventTooltipHelper.js#265](https://searchfox.org/mozilla-central/source/devtools/client/shared/widgets/tooltip/EventTooltipHelper.js#265).
> 
> This is the error reported: 
> `Content Security Policy: The page’s settings blocked the loading of a resource at inline (“default-src”).  EventTooltipHelper.js:265:13`
> 
> One idea for the fix would be to add a class for the iframe and move the styles into the `tooltips.css` stylesheet.

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