TypeError: this.splice is not a function for Indexer Service 0.20.3 using Node v16

[datanexus-vincent]

I ran into this error when setting up my testnet to test out the action queue. This only happens on node v16 though. Switching to v14 let me run with no issues. Probably low priority for that reason but I wanted to report the bug nevertheless.

TypeError: this.splice is not a function
    at HeadersList.append (/home/ubuntu/.nvm/versions/node/v16.15.1/lib/node_modules/@graphprotocol/indexer-service/node_modules/cross-undici-fetch/dist/patch-headers-list.js:44:16)
    at Headers.append (/home/ubuntu/.nvm/versions/node/v16.15.1/lib/node_modules/@graphprotocol/indexer-service/node_modules/undici/lib/fetch/headers.js:239:31)
    at fill (/home/ubuntu/.nvm/versions/node/v16.15.1/lib/node_modules/@graphprotocol/indexer-service/node_modules/undici/lib/fetch/headers.js:56:15)
    at new Headers (/home/ubuntu/.nvm/versions/node/v16.15.1/lib/node_modules/@graphprotocol/indexer-service/node_modules/undici/lib/fetch/headers.js:180:7)
    at new Request (/home/ubuntu/.nvm/versions/node/v16.15.1/lib/node_modules/@graphprotocol/indexer-service/node_modules/cross-undici-fetch/dist/create-node-ponyfill.js:78:29)
    at Object.fetch (/home/ubuntu/.nvm/versions/node/v16.15.1/lib/node_modules/@graphprotocol/indexer-service/node_modules/cross-undici-fetch/dist/create-node-ponyfill.js:110:24)
    at defaultAsyncFetch (/home/ubuntu/.nvm/versions/node/v16.15.1/lib/node_modules/@graphprotocol/indexer-service/node_modules/@graphql-tools/url-loader/index.js:43:29)
    at /home/ubuntu/.nvm/versions/node/v16.15.1/lib/node_modules/@graphprotocol/indexer-service/node_modules/@graphql-tools/url-loader/index.js:479:36
    at new ValueOrPromise (/home/ubuntu/.nvm/versions/node/v16.15.1/lib/node_modules/@graphprotocol/indexer-service/node_modules/value-or-promise/build/main/ValueOrPromise.js:14:21)
    at executor (/home/ubuntu/.nvm/versions/node/v16.15.1/lib/node_modules/@graphprotocol/indexer-service/node_modules/@graphql-tools/url-loader/index.js:447:20)

[fordN]

Interesting, I use node v16 myself. I'll try to reproduce.

[oleksandrmarkelov]

Same issue here when downgraded from 18 to 16 (because of current issue with 18)

TypeError: this.splice is not a function at HeadersList.append (/home/graphval/.nvm/versions/node/v16.17.1/lib/node_modules/@graphprotocol/indexer-service/node_modules/cross-undici-fetch/dist/patch-headers-list.js:44:16) at Headers.append (/home/graphval/.nvm/versions/node/v16.17.1/lib/node_modules/@graphprotocol/indexer-service/node_modules/undici/lib/fetch/headers.js:239:31) at fill (/home/graphval/.nvm/versions/node/v16.17.1/lib/node_modules/@graphprotocol/indexer-service/node_modules/undici/lib/fetch/headers.js:56:15) at new Headers (/home/graphval/.nvm/versions/node/v16.17.1/lib/node_modules/@graphprotocol/indexer-service/node_modules/undici/lib/fetch/headers.js:180:7) at new Request (/home/graphval/.nvm/versions/node/v16.17.1/lib/node_modules/@graphprotocol/indexer-service/node_modules/cross-undici-fetch/dist/create-node-ponyfill.js:78:29) at Object.fetch (/home/graphval/.nvm/versions/node/v16.17.1/lib/node_modules/@graphprotocol/indexer-service/node_modules/cross-undici-fetch/dist/create-node-ponyfill.js:110:24) at defaultAsyncFetch (/home/graphval/.nvm/versions/node/v16.17.1/lib/node_modules/@graphprotocol/indexer-service/node_modules/@graphql-tools/url-loader/index.js:43:29) at /home/graphval/.nvm/versions/node/v16.17.1/lib/node_modules/@graphprotocol/indexer-service/node_modules/@graphql-tools/url-loader/index.js:479:36 at new ValueOrPromise (/home/graphval/.nvm/versions/node/v16.17.1/lib/node_modules/@graphprotocol/indexer-service/node_modules/value-or-promise/build/main/ValueOrPromise.js:14:21) at executor (/home/graphval/.nvm/versions/node/v16.17.1/lib/node_modules/@graphprotocol/indexer-service/node_modules/@graphql-tools/url-loader/index.js:447:20)