diff --git a/bulletin_board/js-client/src/key-ceremony/key-ceremony.component.js b/bulletin_board/js-client/src/key-ceremony/key-ceremony.component.js
index d58e0ac5..6ba56cf6 100644
--- a/bulletin_board/js-client/src/key-ceremony/key-ceremony.component.js
+++ b/bulletin_board/js-client/src/key-ceremony/key-ceremony.component.js
@@ -18,7 +18,7 @@ export class KeyCeremonyComponent extends TrusteeComponent {
   setupElection({
     bulletinBoardClientParams,
     electionUniqueId,
-    authorizationExpirationTimestamp,
+    authorizationExpirationTimestamp
   }) {
     return this.setupElectionWithTypesFilter({
       electionUniqueId,
@@ -28,7 +28,7 @@ export class KeyCeremonyComponent extends TrusteeComponent {
         "create_election",
         "start_key_ceremony",
         "key_ceremony",
-        "end_key_ceremony",
+        "end_key_ceremony"
       ],
     });
   }
@@ -64,7 +64,7 @@ export class KeyCeremonyComponent extends TrusteeComponent {
     onTrusteeNeedsToBeRestored,
     onBackupNeeded,
     onBindBackupButton,
-    onBackupStarted,
+    onBackupStarted
   }) {
     const onSetupDone = await this.trustee.setup();
 
diff --git a/bulletin_board/js-client/src/tally/tally.component.js b/bulletin_board/js-client/src/tally/tally.component.js
index 0062532b..e8902104 100644
--- a/bulletin_board/js-client/src/tally/tally.component.js
+++ b/bulletin_board/js-client/src/tally/tally.component.js
@@ -31,7 +31,7 @@ export class TallyComponent extends TrusteeComponent {
         "end_key_ceremony",
         "start_tally",
         "tally",
-        "end_tally",
+        "end_tally"
       ],
     });
   }
@@ -60,7 +60,7 @@ export class TallyComponent extends TrusteeComponent {
     onRestore,
     onComplete,
     onStart,
-    onTrusteeNeedsToBeRestored,
+    onTrusteeNeedsToBeRestored
   }) {
     const onSetupDone = this.trustee.setup();
 
diff --git a/bulletin_board/js-client/src/trustee/trustee.component.js b/bulletin_board/js-client/src/trustee/trustee.component.js
index 203d5fd8..15e16b9f 100644
--- a/bulletin_board/js-client/src/trustee/trustee.component.js
+++ b/bulletin_board/js-client/src/trustee/trustee.component.js
@@ -27,7 +27,7 @@ export class TrusteeComponent {
       uniqueId: trusteeUniqueId,
       authorityPublicKeyJSON,
       identificationKeys: trusteeIdentificationKeys,
-      wrapperAdapter: trusteeWrapperAdapter,
+      wrapperAdapter: trusteeWrapperAdapter
     });
   }
 
@@ -69,14 +69,14 @@ export class TrusteeComponent {
       ...bulletinBoardClientParams,
       headers: {
         Authorization: authorizationHeader,
-        TrusteeUniqueId: trusteeUniqueIdHeader,
+        TrusteeUniqueId: trusteeUniqueIdHeader
       },
     });
 
     const election = new Election({
       uniqueId: electionUniqueId,
       bulletinBoardClient,
-      typesFilter,
+      typesFilter
     });
 
     this.trustee.election = election;
diff --git a/voting_schemes/electionguard/js-adapter/src/trustee_wrapper_adapter.js b/voting_schemes/electionguard/js-adapter/src/trustee_wrapper_adapter.js
index ca29e5f8..04d74060 100644
--- a/voting_schemes/electionguard/js-adapter/src/trustee_wrapper_adapter.js
+++ b/voting_schemes/electionguard/js-adapter/src/trustee_wrapper_adapter.js
@@ -26,14 +26,14 @@ export class TrusteeWrapperAdapter extends WrapperAdapter {
    * @returns {Promise<undefined>}
    */
   async setup() {
-    return await this.processPythonCode(
+    return await this.processPythonCodeOnWorker(
       `
         from js import trustee_id
         from bulletin_board.electionguard.trustee import Trustee
         trustee = Trustee(trustee_id)
       `,
       {
-        trustee_id: this.trusteeId,
+        trustee_id: this.trusteeId
       }
     );
   }
@@ -47,7 +47,7 @@ export class TrusteeWrapperAdapter extends WrapperAdapter {
    * @returns {Promise<Object|undefined>}
    */
   async processMessage(messageType, decodedData) {
-    const result = await this.processPythonCode(
+    const result = await this.processPythonCodeOnWorker(
       `
       from js import message_type, decoded_data
       import json
@@ -58,16 +58,17 @@ export class TrusteeWrapperAdapter extends WrapperAdapter {
     `,
       {
         message_type: messageType,
-        decoded_data: JSON.stringify(decodedData),
+        decoded_data: JSON.stringify(decodedData)
       }
     );
 
     if (result && result.length > 0) {
       // eslint-disable-next-line camelcase
-      const [{ message_type, content }] = result;
+      // Pyodide 0.17 return a Map instead of a object when python is a dict
+      const { message_type, content } = result[0] instanceof Map ? Object.fromEntries(result[0]) : result[0];
       return {
         messageType: message_type,
-        content,
+        content
       };
     }
   }
@@ -78,7 +79,7 @@ export class TrusteeWrapperAdapter extends WrapperAdapter {
    * @returns {Promise<Boolean>}
    */
   isFresh() {
-    return this.processPythonCode(
+    return this.processPythonCodeOnWorker(
       `
       trustee.is_fresh()
     `
@@ -91,7 +92,7 @@ export class TrusteeWrapperAdapter extends WrapperAdapter {
    * @returns {Promise<String>}
    */
   backup() {
-    return this.processPythonCode(
+    return this.processPythonCodeOnWorker(
       `
       trustee.backup().hex()
     `
@@ -105,14 +106,14 @@ export class TrusteeWrapperAdapter extends WrapperAdapter {
    * @returns {Promise<Boolean>}
    */
   restore(state) {
-    return this.processPythonCode(
+    return this.processPythonCodeOnWorker(
       `
       from js import state
       trustee = Trustee.restore(bytes.fromhex(state))
       True
     `,
       {
-        state,
+        state
       }
     );
   }
@@ -123,7 +124,7 @@ export class TrusteeWrapperAdapter extends WrapperAdapter {
    * @returns {Promise<Boolean>}
    */
   isKeyCeremonyDone() {
-    return this.processPythonCode(
+    return this.processPythonCodeOnWorker(
       `
       trustee.is_key_ceremony_done()
     `
@@ -136,7 +137,7 @@ export class TrusteeWrapperAdapter extends WrapperAdapter {
    * @returns {Promise<Boolean>}
    */
   isTallyDone() {
-    return this.processPythonCode(
+    return this.processPythonCodeOnWorker(
       `
       trustee.is_tally_done()
     `
diff --git a/voting_schemes/electionguard/js-adapter/src/voter_wrapper_adapter.js b/voting_schemes/electionguard/js-adapter/src/voter_wrapper_adapter.js
index e8d618b5..0777195a 100644
--- a/voting_schemes/electionguard/js-adapter/src/voter_wrapper_adapter.js
+++ b/voting_schemes/electionguard/js-adapter/src/voter_wrapper_adapter.js
@@ -26,14 +26,14 @@ export class VoterWrapperAdapter extends WrapperAdapter {
    * @returns {Promise<undefined>}
    */
   async setup() {
-    return await this.processPythonCode(
+    return await this.processPythonCodeOnWorker(
       `
         from js import voter_id
         from bulletin_board.electionguard.voter import Voter
         voter = Voter(voter_id)
       `,
       {
-        voter_id: this.voterId,
+        voter_id: this.voterId
       }
     );
   }
@@ -47,7 +47,7 @@ export class VoterWrapperAdapter extends WrapperAdapter {
    * @returns {Promise<Object|undefined>}
    */
   async processMessage(messageType, decodedData) {
-    const result = await this.processPythonCode(
+    const result = await this.processPythonCodeOnWorker(
       `
       from js import message_type, decoded_data
       import json
@@ -55,16 +55,17 @@ export class VoterWrapperAdapter extends WrapperAdapter {
     `,
       {
         message_type: messageType,
-        decoded_data: JSON.stringify(decodedData),
+        decoded_data: JSON.stringify(decodedData)
       }
     );
 
-    if (result && result[0]) {
+    if (result && result.length > 0) {
       // eslint-disable-next-line camelcase
-      const { message_type, content } = result[0];
+      // Pyodide 0.17 return a Map instead of a object when python is a dict
+      const { message_type, content } = result[0] instanceof Map ? Object.fromEntries(result[0]) : result[0];
       return {
         messageType: message_type,
-        content: content.toJs(),
+        content: content
       };
     }
   }
@@ -80,17 +81,19 @@ export class VoterWrapperAdapter extends WrapperAdapter {
    * @returns {Promise<Object|undefined>}
    */
   async encrypt(plainVote, ballotStyle) {
-    const [auditableData, encryptedData] = await this.processPythonCode(
+    console.log("Encrypting vote", plainVote, ballotStyle);
+    const [auditableData, encryptedData] = await this.processPythonCodeOnWorker(
       `
       from js import plain_vote, ballot_style
       voter.encrypt(plain_vote.to_py(), ballot_style)
     `,
       {
         plain_vote: plainVote,
-        ballot_style: ballotStyle,
+        ballot_style: ballotStyle
       }
     );
-
+    console.log("Encrypted vote: auditableData:", auditableData, "encryptedData:", encryptedData);
+// TODO, FIXME check if we need Object.fromEntries
     return { auditableData, encryptedData };
   }
 }
diff --git a/voting_schemes/electionguard/js-adapter/src/wrapper_adapter.js b/voting_schemes/electionguard/js-adapter/src/wrapper_adapter.js
index f73d690f..fe9da9d4 100644
--- a/voting_schemes/electionguard/js-adapter/src/wrapper_adapter.js
+++ b/voting_schemes/electionguard/js-adapter/src/wrapper_adapter.js
@@ -3,7 +3,7 @@
  */
 export class WrapperAdapter {
   /**
-   * Runs arbitrary python code
+   * Runs arbitrary python code in the web worker
    *
    * @param {String} pythonCode - A string representing valid python code.
    * @param {Object} pythonData - An Object which values can be referenced from
@@ -11,20 +11,21 @@ export class WrapperAdapter {
    * @private
    * @returns {Promise<Object>}
    */
-  async processPythonCode(pythonCode, pythonData) {
+  async processPythonCodeOnWorker(pythonCode, pythonData) {
     return new Promise((resolve, reject) => {
       this.worker.onmessage = (event) => {
         resolve(event.data.results);
       };
 
       this.worker.onerror = (error) => {
+        console.error("Error in worker, pythonCode:", pythonCode, "pythonData:", pythonData);
         console.error(error);
         reject(error);
       };
 
       this.worker.postMessage({
         python: pythonCode,
-        ...pythonData,
+        ...pythonData
       });
     });
   }