diff --git a/ui/src/Common/Fetch.js b/ui/src/Common/Fetch.js
index 6d4a8f068..a62de42a0 100644
--- a/ui/src/Common/Fetch.js
+++ b/ui/src/Common/Fetch.js
@@ -1,9 +1,28 @@
 import merge from "lodash.merge";
 
-const FetchWithCredentials = async (uri, options) =>
+const CommonOptions = {
+  credentials: "include",
+  redirect: "follow"
+};
+
+const FetchGet = async (uri, options) =>
   await fetch(
     uri,
-    merge({}, { credentials: "include", redirect: "follow" }, options)
+    merge(
+      {},
+      {
+        method: "GET",
+        mode: "no-cors"
+      },
+      CommonOptions,
+      options
+    )
   );
 
-export { FetchWithCredentials };
+const FetchPost = async (uri, options) =>
+  await fetch(uri, merge({}, { method: "POST" }, CommonOptions, options));
+
+const FetchDelete = async (uri, options) =>
+  await fetch(uri, merge({}, { method: "DELETE" }, CommonOptions, options));
+
+export { CommonOptions, FetchGet, FetchPost, FetchDelete };
diff --git a/ui/src/Common/Fetch.test.js b/ui/src/Common/Fetch.test.js
index ed244d32a..7218c76c9 100644
--- a/ui/src/Common/Fetch.test.js
+++ b/ui/src/Common/Fetch.test.js
@@ -1,4 +1,6 @@
-import { FetchWithCredentials } from "./Fetch";
+import { CommonOptions, FetchGet, FetchPost, FetchDelete } from "./Fetch";
+
+import merge from "lodash.merge";
 
 beforeEach(() => {
   fetch.resetMocks();
@@ -8,37 +10,53 @@ afterEach(() => {
   jest.restoreAllMocks();
 });
 
-describe("FetchWithCredentials", () => {
-  it("fetch passes '{credentials: include}' to all requests", async () => {
-    const request = FetchWithCredentials("http://example.com", {});
-    await expect(request).resolves.toBeUndefined();
-    expect(fetch).toHaveBeenCalledWith("http://example.com", {
-      credentials: "include",
-      redirect: "follow"
-    });
-  });
+describe("Fetch", () => {
+  const tests = {
+    FetchGet: FetchGet,
+    FetchPost: FetchPost,
+    FetchDelete: FetchDelete
+  };
 
-  it("custom keys are merged with defaults", async () => {
-    const request = FetchWithCredentials("http://example.com", {
-      foo: "bar"
-    });
-    await expect(request).resolves.toBeUndefined();
-    expect(fetch).toHaveBeenCalledWith("http://example.com", {
-      credentials: "include",
-      redirect: "follow",
-      foo: "bar"
-    });
-  });
+  const methodOptions = {
+    FetchGet: { method: "GET", mode: "no-cors" },
+    FetchPost: { method: "POST" },
+    FetchDelete: { method: "DELETE" }
+  };
 
-  it("custom credentials are used when passed", async () => {
-    const request = FetchWithCredentials("http://example.com", {
-      credentials: "none",
-      redirect: "follow"
+  for (const [name, func] of Object.entries(tests)) {
+    it(`${name}: passes '{credentials: include}' to all requests`, async () => {
+      const request = func("http://example.com", {});
+      await expect(request).resolves.toBeUndefined();
+      expect(fetch).toHaveBeenCalledWith(
+        "http://example.com",
+        merge({}, CommonOptions, methodOptions[name])
+      );
     });
-    await expect(request).resolves.toBeUndefined();
-    expect(fetch).toHaveBeenCalledWith("http://example.com", {
-      credentials: "none",
-      redirect: "follow"
+
+    it(`${name}: custom keys are merged with defaults`, async () => {
+      const request = func("http://example.com", {
+        foo: "bar"
+      });
+      await expect(request).resolves.toBeUndefined();
+      expect(fetch).toHaveBeenCalledWith(
+        "http://example.com",
+        merge({}, CommonOptions, methodOptions[name], { foo: "bar" })
+      );
     });
-  });
+
+    it(`${name}: custom credentials are used when passed`, async () => {
+      const request = func("http://example.com", {
+        credentials: "none",
+        redirect: "follow"
+      });
+      await expect(request).resolves.toBeUndefined();
+      expect(fetch).toHaveBeenCalledWith(
+        "http://example.com",
+        merge({}, CommonOptions, methodOptions[name], {
+          credentials: "none",
+          redirect: "follow"
+        })
+      );
+    });
+  }
 });
diff --git a/ui/src/Components/AlertAck/index.js b/ui/src/Components/AlertAck/index.js
index 9f517e7af..a6f41c8ac 100644
--- a/ui/src/Components/AlertAck/index.js
+++ b/ui/src/Components/AlertAck/index.js
@@ -21,7 +21,7 @@ import {
   MatchersFromGroup,
   GenerateAlertmanagerSilenceData
 } from "Stores/SilenceFormStore";
-import { FetchWithCredentials } from "Common/Fetch";
+import { FetchPost } from "Common/Fetch";
 import { TooltipWrapper } from "Components/TooltipWrapper";
 
 const SubmitState = Object.freeze({
@@ -148,19 +148,15 @@ const AlertAck = observer(
         ? `${am.uri}/api/v2/silences`
         : `${am.uri}/api/v1/silences`;
 
-      this.submitState.silencesByCluster[cluster].fetch = FetchWithCredentials(
-        uri,
-        {
-          method: "POST",
-          body: JSON.stringify(
-            this.submitState.silencesByCluster[cluster].payload
-          ),
-          headers: {
-            "Content-Type": "application/json",
-            ...am.headers
-          }
+      this.submitState.silencesByCluster[cluster].fetch = FetchPost(uri, {
+        body: JSON.stringify(
+          this.submitState.silencesByCluster[cluster].payload
+        ),
+        headers: {
+          "Content-Type": "application/json",
+          ...am.headers
         }
-      )
+      })
         .then(result => {
           if (isOpenAPI) {
             if (result.ok) {
diff --git a/ui/src/Components/MainModal/Configuration/SortLabelName.js b/ui/src/Components/MainModal/Configuration/SortLabelName.js
index e6fafa75f..8d68d8238 100644
--- a/ui/src/Components/MainModal/Configuration/SortLabelName.js
+++ b/ui/src/Components/MainModal/Configuration/SortLabelName.js
@@ -7,7 +7,7 @@ import { observer } from "mobx-react";
 import Creatable from "react-select/creatable";
 
 import { StaticLabels } from "Common/Query";
-import { FetchWithCredentials } from "Common/Fetch";
+import { FetchGet } from "Common/Fetch";
 import { FormatBackendURI } from "Stores/AlertStore";
 import { Settings } from "Stores/Settings";
 import { ReactSelectStyles } from "Components/MultiSelect";
@@ -34,7 +34,7 @@ const SortLabelName = observer(
     });
 
     populateNameSuggestions = action(() => {
-      this.nameSuggestionsFetch = FetchWithCredentials(
+      this.nameSuggestionsFetch = FetchGet(
         FormatBackendURI(`labelNames.json`),
         {}
       )
diff --git a/ui/src/Components/ManagedSilence/DeleteSilence.js b/ui/src/Components/ManagedSilence/DeleteSilence.js
index 829d9e2cc..f26dd0f9f 100644
--- a/ui/src/Components/ManagedSilence/DeleteSilence.js
+++ b/ui/src/Components/ManagedSilence/DeleteSilence.js
@@ -16,7 +16,7 @@ import { APISilence } from "Models/API";
 import { AlertStore, FormatBackendURI, FormatAlertsQ } from "Stores/AlertStore";
 import { SilenceFormStore } from "Stores/SilenceFormStore";
 import { FormatQuery, QueryOperators, StaticLabels } from "Common/Query";
-import { FetchWithCredentials } from "Common/Fetch";
+import { FetchGet, FetchDelete } from "Common/Fetch";
 import { Modal } from "Components/Modal";
 import {
   LabelSetList,
@@ -144,7 +144,7 @@ const DeleteSilenceModalContent = observer(
           FormatQuery(StaticLabels.SilenceID, QueryOperators.Equal, silence.id)
         ]);
 
-      this.previewState.fetch = FetchWithCredentials(alertsURI, {})
+      this.previewState.fetch = FetchGet(alertsURI, {})
         .then(result => result.json())
         .then(result => {
           this.previewState.groupsToUniqueLabels(Object.values(result.groups));
@@ -175,8 +175,7 @@ const DeleteSilenceModalContent = observer(
         ? `${alertmanager.uri}/api/v2/silence/${silence.id}`
         : `${alertmanager.uri}/api/v1/silence/${silence.id}`;
 
-      this.deleteState.fetch = FetchWithCredentials(uri, {
-        method: "DELETE",
+      this.deleteState.fetch = FetchDelete(uri, {
         headers: alertmanager.headers
       })
         .then(result => {
diff --git a/ui/src/Components/NavBar/FilterInput/index.js b/ui/src/Components/NavBar/FilterInput/index.js
index 0dc7b5329..a21cffef5 100644
--- a/ui/src/Components/NavBar/FilterInput/index.js
+++ b/ui/src/Components/NavBar/FilterInput/index.js
@@ -15,7 +15,7 @@ import { faSearch } from "@fortawesome/free-solid-svg-icons/faSearch";
 import { AlertStore, FormatBackendURI } from "Stores/AlertStore";
 import { Settings } from "Stores/Settings";
 import { IsMobile } from "Common/Device";
-import { FetchWithCredentials } from "Common/Fetch";
+import { FetchGet } from "Common/Fetch";
 import { FilterInputLabel } from "Components/Labels/FilterInputLabel";
 import { AutosuggestTheme } from "./Constants";
 import { History } from "./History";
@@ -73,7 +73,7 @@ const FilterInput = observer(
     onSuggestionsFetchRequested = debounce(
       action(({ value }) => {
         if (value !== "") {
-          this.inputStore.suggestionsFetch = FetchWithCredentials(
+          this.inputStore.suggestionsFetch = FetchGet(
             FormatBackendURI(`autocomplete.json?term=${value}`),
             {}
           )
diff --git a/ui/src/Components/SilenceModal/Browser/index.js b/ui/src/Components/SilenceModal/Browser/index.js
index a3579cac8..6fdbce575 100644
--- a/ui/src/Components/SilenceModal/Browser/index.js
+++ b/ui/src/Components/SilenceModal/Browser/index.js
@@ -21,7 +21,7 @@ import { faAngleDoubleRight } from "@fortawesome/free-solid-svg-icons/faAngleDou
 import { AlertStore, FormatBackendURI } from "Stores/AlertStore";
 import { SilenceFormStore } from "Stores/SilenceFormStore";
 import { Settings } from "Stores/Settings";
-import { FetchWithCredentials } from "Common/Fetch";
+import { FetchGet } from "Common/Fetch";
 import { MountFade } from "Components/Animations/MountFade";
 import { ManagedSilence } from "Components/ManagedSilence";
 
@@ -102,7 +102,7 @@ const Browser = observer(
         }`
       );
 
-      this.dataSource.fetch = FetchWithCredentials(uri, {})
+      this.dataSource.fetch = FetchGet(uri, {})
         .then(result => {
           return result.json();
         })
diff --git a/ui/src/Components/SilenceModal/SilenceMatch/LabelNameInput.js b/ui/src/Components/SilenceModal/SilenceMatch/LabelNameInput.js
index 8fc6c6a9e..92434d764 100644
--- a/ui/src/Components/SilenceModal/SilenceMatch/LabelNameInput.js
+++ b/ui/src/Components/SilenceModal/SilenceMatch/LabelNameInput.js
@@ -8,7 +8,7 @@ import { SilenceFormMatcher } from "Models/SilenceForm";
 import { MultiSelect } from "Components/MultiSelect";
 import { ValidationError } from "Components/MultiSelect/ValidationError";
 import { FormatBackendURI } from "Stores/AlertStore";
-import { FetchWithCredentials } from "Common/Fetch";
+import { FetchGet } from "Common/Fetch";
 
 const LabelNameInput = observer(
   class LabelNameInput extends MultiSelect {
@@ -20,7 +20,7 @@ const LabelNameInput = observer(
     populateNameSuggestions = action(() => {
       const { matcher } = this.props;
 
-      this.nameSuggestionsFetch = FetchWithCredentials(
+      this.nameSuggestionsFetch = FetchGet(
         FormatBackendURI(`labelNames.json`),
         {}
       )
@@ -45,7 +45,7 @@ const LabelNameInput = observer(
     populateValueSuggestions = action(() => {
       const { matcher } = this.props;
 
-      this.valueSuggestionsFetch = FetchWithCredentials(
+      this.valueSuggestionsFetch = FetchGet(
         FormatBackendURI(`labelValues.json?name=${matcher.name}`),
         {}
       )
diff --git a/ui/src/Components/SilenceModal/SilenceMatch/MatchCounter.js b/ui/src/Components/SilenceModal/SilenceMatch/MatchCounter.js
index 8f9d19bc5..b867ebf6e 100644
--- a/ui/src/Components/SilenceModal/SilenceMatch/MatchCounter.js
+++ b/ui/src/Components/SilenceModal/SilenceMatch/MatchCounter.js
@@ -14,7 +14,7 @@ import { FormatBackendURI, FormatAlertsQ } from "Stores/AlertStore";
 import { SilenceFormStore } from "Stores/SilenceFormStore";
 import { SilenceFormMatcher } from "Models/SilenceForm";
 import { TooltipWrapper } from "Components/TooltipWrapper";
-import { FetchWithCredentials } from "Common/Fetch";
+import { FetchGet } from "Common/Fetch";
 import { MatcherToFilter, AlertManagersToFilter } from "../Matchers";
 
 const MatchCounter = observer(
@@ -55,7 +55,7 @@ const MatchCounter = observer(
       const alertsURI =
         FormatBackendURI("alerts.json?") + FormatAlertsQ(filters);
 
-      this.matchedAlerts.fetch = FetchWithCredentials(alertsURI, {})
+      this.matchedAlerts.fetch = FetchGet(alertsURI, {})
         .then(result => {
           return result.json();
         })
diff --git a/ui/src/Components/SilenceModal/SilencePreview/index.js b/ui/src/Components/SilenceModal/SilencePreview/index.js
index ad7a6d769..c061f5578 100644
--- a/ui/src/Components/SilenceModal/SilencePreview/index.js
+++ b/ui/src/Components/SilenceModal/SilencePreview/index.js
@@ -16,7 +16,7 @@ import {
   LabelSetList,
   GroupListToUniqueLabelsList
 } from "Components/LabelSetList";
-import { FetchWithCredentials } from "Common/Fetch";
+import { FetchGet } from "Common/Fetch";
 import { MatcherToFilter, AlertManagersToFilter } from "../Matchers";
 
 const FetchError = ({ message }) => (
@@ -82,7 +82,7 @@ const SilencePreview = observer(
       const alertsURI =
         FormatBackendURI("alerts.json?") + FormatAlertsQ(filters);
 
-      this.matchedAlerts.fetch = FetchWithCredentials(alertsURI, {})
+      this.matchedAlerts.fetch = FetchGet(alertsURI, {})
         .then(result => {
           return result.json();
         })
diff --git a/ui/src/Components/SilenceModal/SilencePreview/index.test.js b/ui/src/Components/SilenceModal/SilencePreview/index.test.js
index e4d3ec9ad..66935abc6 100644
--- a/ui/src/Components/SilenceModal/SilencePreview/index.test.js
+++ b/ui/src/Components/SilenceModal/SilencePreview/index.test.js
@@ -85,11 +85,14 @@ describe("<SilencePreview />", () => {
 
     const tree = MountedSilencePreview();
     await expect(tree.instance().matchedAlerts.fetch).resolves.toBeUndefined();
-    expect(
-      fetch
-    ).toHaveBeenCalledWith(
+    expect(fetch).toHaveBeenCalledWith(
       "./alerts.json?q=foo%3Dbar&q=%40alertmanager%3D~%5E%28amValue%29%24",
-      { credentials: "include", redirect: "follow" }
+      {
+        method: "GET",
+        mode: "no-cors",
+        credentials: "include",
+        redirect: "follow"
+      }
     );
   });
 
@@ -101,11 +104,14 @@ describe("<SilencePreview />", () => {
 
     const tree = MountedSilencePreview();
     await expect(tree.instance().matchedAlerts.fetch).resolves.toBeUndefined();
-    expect(
-      fetch
-    ).toHaveBeenCalledWith(
+    expect(fetch).toHaveBeenCalledWith(
       "./alerts.json?q=foo%3Dbar&q=%40alertmanager%3D~%5E%28am1%7Cam2%29%24",
-      { credentials: "include", redirect: "follow" }
+      {
+        method: "GET",
+        mode: "no-cors",
+        credentials: "include",
+        redirect: "follow"
+      }
     );
   });
 
diff --git a/ui/src/Components/SilenceModal/SilenceSubmit/SilenceSubmitProgress.js b/ui/src/Components/SilenceModal/SilenceSubmit/SilenceSubmitProgress.js
index bd19778e9..25354e794 100644
--- a/ui/src/Components/SilenceModal/SilenceSubmit/SilenceSubmitProgress.js
+++ b/ui/src/Components/SilenceModal/SilenceSubmit/SilenceSubmitProgress.js
@@ -13,7 +13,7 @@ import { faExclamationCircle } from "@fortawesome/free-solid-svg-icons/faExclama
 
 import { APISilenceMatcher } from "Models/API";
 import { AlertStore } from "Stores/AlertStore";
-import { FetchWithCredentials } from "Common/Fetch";
+import { FetchPost } from "Common/Fetch";
 
 const SubmitState = Object.freeze({
   InProgress: "InProgress",
@@ -109,8 +109,7 @@ const SilenceSubmitProgress = observer(
         ? `${am.uri}/api/v2/silences`
         : `${am.uri}/api/v1/silences`;
 
-      this.submitState.fetch = FetchWithCredentials(uri, {
-        method: "POST",
+      this.submitState.fetch = FetchPost(uri, {
         body: JSON.stringify(payload),
         headers: {
           "Content-Type": "application/json",
diff --git a/ui/src/Stores/AlertStore.js b/ui/src/Stores/AlertStore.js
index 3ec98f539..4d81acb89 100644
--- a/ui/src/Stores/AlertStore.js
+++ b/ui/src/Stores/AlertStore.js
@@ -8,7 +8,7 @@ import qs from "qs";
 
 import moment from "moment";
 
-import { FetchWithCredentials } from "Common/Fetch";
+import { FetchGet } from "Common/Fetch";
 
 const QueryStringEncodeOptions = {
   encodeValuesOnly: true, // don't encode q[]
@@ -268,7 +268,7 @@ class AlertStore {
         `alerts.json?sortOrder=${sortOrder}&sortLabel=${sortLabel}&sortReverse=${sortReverse}&`
       ) + FormatAPIFilterQuery(this.filters.values.map(f => f.raw));
 
-    return FetchWithCredentials(alertsURI, {})
+    return FetchGet(alertsURI, {})
       .then(result => {
         this.status.setProcessing();
         return result.json();