diff --git a/webapp/src/ClimateChart.ts b/webapp/src/ClimateChart.ts
index d33582b..8816296 100644
--- a/webapp/src/ClimateChart.ts
+++ b/webapp/src/ClimateChart.ts
@@ -45,7 +45,7 @@ class ClimateChart {
     }
 
     private async getInitialDataBlob(): Promise<SnapshotRecords> {
-        const data = await fetch(this.rootUrl + "/data?since=" + new Date((new Date().getTime() - this.minutesDisplayed * 60 * 1000)).toISOString());
+        const data = await fetch("data?since=" + new Date((new Date().getTime() - this.minutesDisplayed * 60 * 1000)).toISOString());
         const payload = await data.json();
         if (payload.snapshots.length < 0) {
             throw new Error("Bad response - no snapshots found!");
@@ -90,7 +90,7 @@ class ClimateChart {
 
     private async updateFromServer() {
         const currentTime = (new Date(this.latestSnapshot.time)).toISOString();
-        const url = "/" + this.rootUrl + "data?since=" + currentTime;
+        const url = "data?since=" + currentTime;
         try {
             const payload: SnapshotRecords = await (await fetch(url)).json();
             if (payload.snapshots.length > 0 && new Date(payload.snapshots[0].time).getTime() > Date.now()) {