1 files changed, 17 insertions, 2 deletions
diff --git a/build.sh b/build.sh
index 941ce1e..31f3dec 100755
--- a/build.sh
+++ b/build.sh
@@ -267,9 +267,24 @@ $(map_get EXPORTCODES $FILEKEY)
     done
 
     if [ "$BROWSER" = "chromium" ]; then
-	echo "window.killtheweb={is_chrome: true, browser: window.chrome};" > $BUILDDIR/exports_init.js
+	cat > $BUILDDIR/exports_init.js <<EOF
+window.killtheweb={is_chrome: true, browser: window.chrome};
+EOF
     else
-	echo "window.killtheweb={is_mozilla: true, browser: this.browser};" > $BUILDDIR/exports_init.js
+	cat > $BUILDDIR/exports_init.js <<EOF
+/* Polyfill for IceCat 60. */
+String.prototype.matchAll = String.prototype.matchAll || function(regex) {
+    if (regex.flags.search("g") === -1)
+        throw new TypeError("String.prototype.matchAll called with a non-global RegExp argument");
+
+    for (const matches = [];;) {
+        if (matches[matches.push(regex.exec(this)) - 1] === null)
+	    return matches.splice(0, matches.length - 1);
+    }
+}
+
+window.killtheweb={is_mozilla: true, browser: this.browser};
+EOF
     fi
 
     cp -r copyright licenses/ $BUILDDIR