diff --git a/package.json b/package.json
index b850e57214..f9203bff1a 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
     "name": "capture-app",
     "homepage": ".",
-    "version": "105.5.2",
+    "version": "105.5.2-ocg-1",
     "cacheVersion": "2",
     "license": "BSD-3-Clause",
     "private": true,
@@ -27,6 +27,7 @@
         "d2-utilizr": "^0.2.15",
         "date-fns": "^1.29.0",
         "history": "^5.3.0",
+        "js-sha256": "^0.11.1",
         "leaflet": "^1.7.1",
         "leaflet-draw": "^1.0.4",
         "lodash": "^4.17.21",
diff --git a/src/core_modules/capture-core-utils/hash/hashSHA256.ts b/src/core_modules/capture-core-utils/hash/hashSHA256.ts
index 87e7775b3f..a637eadad8 100644
--- a/src/core_modules/capture-core-utils/hash/hashSHA256.ts
+++ b/src/core_modules/capture-core-utils/hash/hashSHA256.ts
@@ -1,4 +1,11 @@
+import { sha256 } from 'js-sha256';
+
 export const hashSHA256 = async (input: string): Promise<string> => {
+    if (!window.crypto?.subtle) {
+        console.warn('SubtleCrypto API not available, falling back to js-sha256.');
+        return sha256(input);
+    }
+
     const inputUint8 = new TextEncoder().encode(input);
     const hashBuffer = await window.crypto.subtle.digest('SHA-256', inputUint8);
     const hashArray = Array.from(new Uint8Array(hashBuffer));
diff --git a/yarn.lock b/yarn.lock
index 4eae6ff3ee..2993e749d5 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -9943,6 +9943,11 @@ joi@^17.13.3:
     "@sideway/formula" "^3.0.1"
     "@sideway/pinpoint" "^2.0.0"
 
+js-sha256@^0.11.1:
+  version "0.11.1"
+  resolved "https://registry.yarnpkg.com/js-sha256/-/js-sha256-0.11.1.tgz#712262e8fc9569d6f7f6eea72c0d8e5ccc7c976c"
+  integrity sha512-o6WSo/LUvY2uC4j7mO50a2ms7E/EAdbP0swigLV+nzHKTTaYnaLIWJ02VdXrsJX0vGedDESQnLsOekr94ryfjg==
+
 "js-tokens@^3.0.0 || ^4.0.0", js-tokens@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/js-tokens/-/js-tokens-4.0.0.tgz#19203fb59991df98e3a287050d4647cdeaf32499"
@@ -13268,7 +13273,7 @@ string-natural-compare@^3.0.1:
   resolved "https://registry.yarnpkg.com/string-natural-compare/-/string-natural-compare-3.0.1.tgz#7a42d58474454963759e8e8b7ae63d71c1e7fdf4"
   integrity sha512-n3sPwynL1nwKi3WJ6AIsClwBMa0zTi54fn2oLU6ndfTSIO05xaznjSf15PcBZU6FNWbmN5Q6cxT4V5hGvB4taw==
 
-"string-width-cjs@npm:string-width@^4.2.0":
+"string-width-cjs@npm:string-width@^4.2.0", string-width@^4.1.0, string-width@^4.2.0, string-width@^4.2.3:
   version "4.2.3"
   resolved "https://registry.yarnpkg.com/string-width/-/string-width-4.2.3.tgz#269c7117d27b05ad2e536830a8ec895ef9c6d010"
   integrity sha512-wKyQRQpjJ0sIp62ErSZdGsjMJWsap5oRNihHhu6G7JVO/9jIB6UyevL+tXuOqrng8j/cxKTWyWUwvSTriiZz/g==
@@ -13294,15 +13299,6 @@ string-width@^3.0.0, string-width@^3.1.0:
     is-fullwidth-code-point "^2.0.0"
     strip-ansi "^5.1.0"
 
-string-width@^4.1.0, string-width@^4.2.0, string-width@^4.2.3:
-  version "4.2.3"
-  resolved "https://registry.yarnpkg.com/string-width/-/string-width-4.2.3.tgz#269c7117d27b05ad2e536830a8ec895ef9c6d010"
-  integrity sha512-wKyQRQpjJ0sIp62ErSZdGsjMJWsap5oRNihHhu6G7JVO/9jIB6UyevL+tXuOqrng8j/cxKTWyWUwvSTriiZz/g==
-  dependencies:
-    emoji-regex "^8.0.0"
-    is-fullwidth-code-point "^3.0.0"
-    strip-ansi "^6.0.1"
-
 string-width@^5.0.1, string-width@^5.1.2:
   version "5.1.2"
   resolved "https://registry.yarnpkg.com/string-width/-/string-width-5.1.2.tgz#14f8daec6d81e7221d2a357e668cab73bdbca794"
@@ -13394,14 +13390,7 @@ stringify-object@^3.3.0:
     is-obj "^1.0.1"
     is-regexp "^1.0.0"
 
-"strip-ansi-cjs@npm:strip-ansi@^6.0.1":
-  version "6.0.1"
-  resolved "https://registry.yarnpkg.com/strip-ansi/-/strip-ansi-6.0.1.tgz#9e26c63d30f53443e9489495b2105d37b67a85d9"
-  integrity sha512-Y38VPSHcqkFrCpFnQ9vuSXmquuv5oXOKpGeT6aGrr3o3Gc9AlVa6JBfUSOCnbxGGZF+/0ooI7KrPuUSztUdU5A==
-  dependencies:
-    ansi-regex "^5.0.1"
-
-strip-ansi@6.0.1, strip-ansi@^6.0.0, strip-ansi@^6.0.1:
+"strip-ansi-cjs@npm:strip-ansi@^6.0.1", strip-ansi@6.0.1, strip-ansi@^6.0.0, strip-ansi@^6.0.1:
   version "6.0.1"
   resolved "https://registry.yarnpkg.com/strip-ansi/-/strip-ansi-6.0.1.tgz#9e26c63d30f53443e9489495b2105d37b67a85d9"
   integrity sha512-Y38VPSHcqkFrCpFnQ9vuSXmquuv5oXOKpGeT6aGrr3o3Gc9AlVa6JBfUSOCnbxGGZF+/0ooI7KrPuUSztUdU5A==
@@ -14939,7 +14928,8 @@ workbox-window@7.3.0:
     "@types/trusted-types" "^2.0.2"
     workbox-core "7.3.0"
 
-"wrap-ansi-cjs@npm:wrap-ansi@^7.0.0":
+"wrap-ansi-cjs@npm:wrap-ansi@^7.0.0", wrap-ansi@^7.0.0:
+  name wrap-ansi-cjs
   version "7.0.0"
   resolved "https://registry.yarnpkg.com/wrap-ansi/-/wrap-ansi-7.0.0.tgz#67e145cff510a6a6984bdf1152911d69d2eb9e43"
   integrity sha512-YVGIj2kamLSTxw6NsZjoBxfSwsn0ycdesmc4p+Q21c5zPuZ1pl+NfxVdxPtdHvmNVOQ6XSYG4AUtyt/Fi7D16Q==
@@ -14966,15 +14956,6 @@ wrap-ansi@^6.2.0:
     string-width "^4.1.0"
     strip-ansi "^6.0.0"
 
-wrap-ansi@^7.0.0:
-  version "7.0.0"
-  resolved "https://registry.yarnpkg.com/wrap-ansi/-/wrap-ansi-7.0.0.tgz#67e145cff510a6a6984bdf1152911d69d2eb9e43"
-  integrity sha512-YVGIj2kamLSTxw6NsZjoBxfSwsn0ycdesmc4p+Q21c5zPuZ1pl+NfxVdxPtdHvmNVOQ6XSYG4AUtyt/Fi7D16Q==
-  dependencies:
-    ansi-styles "^4.0.0"
-    string-width "^4.1.0"
-    strip-ansi "^6.0.0"
-
 wrap-ansi@^8.0.1, wrap-ansi@^8.1.0:
   version "8.1.0"
   resolved "https://registry.yarnpkg.com/wrap-ansi/-/wrap-ansi-8.1.0.tgz#56dc22368ee570face1b49819975d9b9a5ead214"