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Fix code scanning alert #2: Prototype-polluting function #686

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Fix code scanning alert #2: Prototype-polluting function #686

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4 changes: 4 additions & 0 deletions lib/mergeDeep.js
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Original file line number Diff line number Diff line change
Expand Up @@ -91,6 +91,10 @@ class MergeDeep {
// One of the oddities is when we compare objects, we are only interested in the properties of source
// So any property in the target that is not in the source is not treated as a deletion
for (const key in source) {
// Skip prototype pollution properties
if (key === "__proto__" || key === "constructor") {
continue;
}
// Logic specific for Github
// API response includes urls for resources, or other ignorable fields; we can ignore them
if (key.indexOf('url') >= 0 || this.ignorableFields.indexOf(key) >= 0) {
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