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* `setTimeout` and `clearTimeout` are global functions. Think the window versions of them were for the following reason: https://stackoverflow.com/questions/60245787/ * Comments and extra test here helped me understand which inserts were expected and which are to be ignored * Add a test for the style setProperty/removeProperty added in #671 * Add a test to ensure that listeners get added correctly in nested iframes - particularly important for those which rely on prototype monkeypatching * Pass in the window object from the current iframe so that monkeypatching applies to all windows * Satisfy typings * No need to insert an iframe as there's one already set up for us * Enable the console logger to also intercept log messages within iframes * There's no tests for FontFace but presumably the monkeypatching here works similarly to the others
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CSS declaration observer
The Issue
There are browser APIs that can modify the value of CSS declaration by setting property and removing property. So we need to observe these changes and replay them.
The implementation
The CSS declaration observer was implemented in the general pattern and follow the latest design of @Juice10, e.g, using array index to handle nesting and store changes in virtual style when using a fragment.
Decisions
Two small designs do not fit well but can be improved in the following patches, without blocking this feature.
getNestedRulenot returnCSSGroupingRule, but in this scenario, it can returnCSSStyleRule.XXXRule, so it's a little confusing to naming an operation to CSS rule.