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fix: more robust rootShadowHost check #50

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Feb 20, 2023
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fix: more robust rootShadowHost check #50

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2 changes: 1 addition & 1 deletion packages/rrweb/src/record/mutation.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -282,7 +282,7 @@ export default class MutationBuffer {
// ensure shadowHost is a Node, or doc.contains will throw an error
const notInDoc =
!this.doc.contains(n) &&
(rootShadowHost === null || !this.doc.contains(rootShadowHost));
(!rootShadowHost || !this.doc.contains(rootShadowHost));
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Hmm would you mind explaining how this fixes the reported issue?
Not sure what I'm missing here but I tried reproducing this locally, by explicitly calling this.doc.contains(undefined) but the call seemed to return false and didn't crash.

Also, any chance that this is caused by the line above (n)?

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Ofc chances are that in my simple test app, doc is handling the contains call somewhat differently than in Sentry...

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ah, oof, I thought that contains(undefined) would break it. If that works, then this isn't a fix at all, then it obv. is a different issue. Then I guess we'd need to do a rootShadowHost instanceof Node check or something along these lines 🤔

if (!n.parentNode || notInDoc) {
return;
}
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