diff --git a/client/galaxy/scripts/mvc/ui/ui-slider.js b/client/galaxy/scripts/mvc/ui/ui-slider.js
index f1050baf374..b60d956725b 100644
--- a/client/galaxy/scripts/mvc/ui/ui-slider.js
+++ b/client/galaxy/scripts/mvc/ui/ui-slider.js
@@ -1,4 +1,5 @@
 import Backbone from "backbone";
+import IMask from "imask";
 
 import Utils from "utils/utils";
 
@@ -23,20 +24,23 @@ const View = Backbone.View.extend({
         this.$text = this.$(".ui-form-slider-text");
         this.$slider = this.$(".ui-form-slider-element");
 
-        // add text field event
-        this.$text
-            .on("change", e => {
-                this.value(e.currentTarget.value);
-            })
-            .on("input", e => {
-                const input = e.currentTarget;
-                if (this._isParameter(input.value)) {
-                    return;
-                } else if (!this.model.get("precise")) {
-                    input.value = input.value.split(".")[0];
+        IMask(this.$text[0], {
+            mask: value => {
+                if (this._isParameter(value)) {
+                    return true;
                 }
-                input.value = input.value.replace(/[^0-9eE.-]/g, "");
-            });
+                if (!this.model.get("precise")) {
+                    if (value != value.split(".")[0]) {
+                        return false;
+                    }
+                }
+                return value == value.replace(/[^0-9eE.-]/g, "");
+            }
+        });
+
+        this.$text[0].addEventListener("change", e => {
+            this.value(e.currentTarget.value);
+        });
 
         // build slider, cannot be rebuild in render
         const opts = this.model.attributes;
diff --git a/client/karma/webpack.config.unittest.js b/client/karma/webpack.config.unittest.js
index b8df1e6ff0f..63466d2b093 100644
--- a/client/karma/webpack.config.unittest.js
+++ b/client/karma/webpack.config.unittest.js
@@ -36,9 +36,14 @@ module.exports = (env, argv) => {
     // Using babel-plugin-rewire to handle dependency mocking since webpack 4
     // exports immutable bindings for ES modules but we still need a way to
     // overwrite dependencies during unit-testing.
+    //
+    // Additionally, set exclude for babel-loader to completely ignore *all*
+    // node-modules, without our exceptions to support IE as in parent webpack
+    // config.
 
     wpConfig.module.rules = wpConfig.module.rules.map(rule => {
         if (rule.loader == "babel-loader") {
+            rule.exclude = [/(node_modules\/)/]
             rule.options.plugins.push("rewire");
         }
         return rule;
diff --git a/client/webpack.config.js b/client/webpack.config.js
index bd341ad0b4d..47d15f80b45 100644
--- a/client/webpack.config.js
+++ b/client/webpack.config.js
@@ -66,11 +66,12 @@ module.exports = (env = {}, argv = {}) => {
                 },
                 {
                     test: /\.js$/,
-                    // Pretty sure we don't want anything except node_modules here
-                    exclude: [
-                        /(node_modules\/(?!(handsontable)\/)|bower_components)/,
-                        libsBase
-                    ],
+                    /*
+                     * Babel transpile excludes for:
+                     * - all node_modules except for handsontable, bootstrap-vue
+                     * - statically included libs (like old jquery plugins, etc.)
+                    */
+                    exclude: [/(node_modules\/(?!(handsontable|bootstrap-vue)\/))/, libsBase],
                     loader: "babel-loader",
                     options: {
                         cacheDirectory: true,