Reference Error: Excessive alias count indicates a resource exhaustion attack in percy url yaml with 360 url items

[sklerotraficon]

The problem

Using percy snapshot I have around 350 URLs in a urls.yaml according to the Example snapshots.yml

I use 3 more defined references in every url item.

On running the percy snapshot command, I get a Reference Error: Excessive alias count indicates a resource exhaustion attack.

Since the error seems to come from the yaml parser used by Percy,there should be a way to set the maxAliasCount in the percy configuration and pass it to the yaml parser.

The value should be configurable via a config parameter in the snapshot section of .percy.js:

According to the YAML Documentation:

• maxAliasCount is a number
• default 100
• set to -1 to disable checks
• set to 0 disallows all alias nodes.

Environment

• Node version:
• @percy/cli version: 1.27.5
• Version of Percy SDK you’re using:

Debug logs

The logs shows: Reference Error: Excessive alias count indicates a resource exhaustion attack

Code to reproduce issue

The yaml followed the Example snapshots.yml with 3 more defined references in a yaml with 360 url items

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This issue was closed because it has been stalled for 28 days with no activity.