diff --git a/build.rs b/build.rs
index 7c15ffc..442ab08 100644
--- a/build.rs
+++ b/build.rs
@@ -8,8 +8,8 @@ use std::{
 };
 
 use epaint::{
-    text::{FontData, FontDefinitions, FontTweak},
     FontFamily,
+    text::{FontData, FontDefinitions, FontTweak},
 };
 
 use run_script::ScriptOptions;
diff --git a/src/function_entry.rs b/src/function_entry.rs
index f825bdc..e563c2c 100644
--- a/src/function_entry.rs
+++ b/src/function_entry.rs
@@ -449,7 +449,7 @@ impl FunctionEntry {
             Some(integral_data) => {
                 if integral_step > step {
                     plot_ui.bar_chart(
-                        BarChart::new(integral_data.0.clone())
+                        BarChart::new("integral bar chart", integral_data.0.clone())
                             .color(Color32::BLUE)
                             .width(integral_step),
                     );
diff --git a/src/function_manager.rs b/src/function_manager.rs
index 9981c88..d3b1e7d 100644
--- a/src/function_manager.rs
+++ b/src/function_manager.rs
@@ -1,7 +1,7 @@
 use crate::{
     consts::COLORS, function_entry::FunctionEntry, misc::random_u64, widgets::widgets_ontop,
 };
-use egui::{Button, Id, Key, Modifiers, TextEdit, WidgetText};
+use egui::{Button, Id, Key, Modifiers, PopupCloseBehavior, TextEdit, WidgetText};
 use emath::vec2;
 use parsing::Movement;
 use serde::ser::SerializeStruct;
@@ -147,17 +147,23 @@ impl FunctionManager {
 
                         let autocomplete_popup_id = Id::new("autocomplete popup");
 
-                        egui::popup_below_widget(ui, autocomplete_popup_id, &re, |ui| {
-                            hints.iter().enumerate().for_each(|(i, candidate)| {
-                                if ui
-                                    .selectable_label(i == function.autocomplete.i, *candidate)
-                                    .clicked()
-                                {
-                                    clicked = true;
-                                    function.autocomplete.i = i;
-                                }
-                            });
-                        });
+                        egui::popup_below_widget(
+                            ui,
+                            autocomplete_popup_id,
+                            &re,
+                            PopupCloseBehavior::CloseOnClickOutside,
+                            |ui| {
+                                hints.iter().enumerate().for_each(|(i, candidate)| {
+                                    if ui
+                                        .selectable_label(i == function.autocomplete.i, *candidate)
+                                        .clicked()
+                                    {
+                                        clicked = true;
+                                        function.autocomplete.i = i;
+                                    }
+                                });
+                            },
+                        );
 
                         if clicked {
                             function
@@ -172,10 +178,14 @@ impl FunctionManager {
 
                     // Push cursor to end if needed
                     if movement == Movement::Complete {
+                        // TODO! proper error handling
                         let mut state =
                             unsafe { TextEdit::load_state(ui.ctx(), te_id).unwrap_unchecked() };
                         let ccursor = egui::text::CCursor::new(function.autocomplete.string.len());
-                        state.set_ccursor_range(Some(egui::text::CCursorRange::one(ccursor)));
+                        state
+                            .cursor
+                            .set_char_range(Some(egui::text::CCursorRange::one(ccursor)));
+
                         TextEdit::store_state(ui.ctx(), te_id, state);
                     }
                 }
diff --git a/src/lib.rs b/src/lib.rs
index f2c1d2f..f4df882 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -22,6 +22,7 @@ pub use crate::{
 cfg_if::cfg_if! {
     if #[cfg(target_arch = "wasm32")] {
         use wasm_bindgen::prelude::*;
+        use web_sys::HtmlCanvasElement;
 
         use lol_alloc::{FreeListAllocator, LockedAllocator};
         #[global_allocator]
@@ -49,26 +50,28 @@ cfg_if::cfg_if! {
                      }
                  }
 
-                 /// Call this once from JavaScript to start your app.
-                 #[wasm_bindgen]
-                 pub async fn start(&self, canvas_id: &str) -> Result<(), wasm_bindgen::JsValue> {
-                     self.runner
-                         .start(
-                             canvas_id,
-                             eframe::WebOptions::default(),
-                             Box::new(|cc| Box::new(math_app::MathApp::new(cc))),
-                         )
-                         .await
-                 }
+                /// Call this once from JavaScript to start your app.
+                #[wasm_bindgen]
+                pub async fn start(&self, canvas_id: HtmlCanvasElement) -> Result<(), wasm_bindgen::JsValue> {
+                    self.runner
+                        .start(
+                            canvas_id,
+                            eframe::WebOptions::default(),
+                            Box::new(|cc| Ok(Box::new(math_app::MathApp::new(cc)))),
+                        )
+                        .await
+                }
             }
 
         #[wasm_bindgen(start)]
         pub async fn start() {
             tracing::info!("Starting...");
 
+            let document = web_sys::window().unwrap().document().unwrap();
+            let canvas = document.get_element_by_id("canvas").unwrap().dyn_into::<HtmlCanvasElement>().unwrap();
 
             let web_handle = WebHandle::new();
-            web_handle.start("canvas").await.unwrap()
+            web_handle.start(canvas).await.unwrap()
         }
     }
 }
diff --git a/src/math_app.rs b/src/math_app.rs
index 123afa5..accfaee 100644
--- a/src/math_app.rs
+++ b/src/math_app.rs
@@ -6,13 +6,13 @@ use crate::{
 };
 use eframe::App;
 use egui::{
-    Button, CentralPanel, Color32, ComboBox, Context, DragValue, Frame, Key, Layout, SidePanel,
-    TopBottomPanel, Ui, Vec2, Window, style::Margin,
+    Button, CentralPanel, Color32, ComboBox, Context, CornerRadius, DragValue, Frame, Key, Layout,
+    SidePanel, TopBottomPanel, Ui, Vec2, Window,
 };
 use egui_plot::Plot;
 
 use emath::{Align, Align2};
-use epaint::Rounding;
+use epaint::{Margin, Rounding};
 use instant::Instant;
 use itertools::Itertools;
 use std::{io::Read, ops::BitXorAssign};
@@ -535,11 +535,11 @@ impl App for MathApp {
         // Central panel which contains the central plot (or an error created when parsing)
         CentralPanel::default()
             .frame(Frame {
-                inner_margin: Margin::symmetric(0.0, 0.0),
-                rounding: Rounding::ZERO,
+                inner_margin: Margin::ZERO,
+                corner_radius: CornerRadius::ZERO,
                 // fill: crate::style::STYLE.window_fill(),
                 fill: Color32::from_gray(27),
-                ..Frame::none()
+                ..Frame::NONE
             })
             .show(ctx, |ui| {
                 // Display an error if it exists
diff --git a/src/misc.rs b/src/misc.rs
index 9ed1e93..e39c3d7 100644
--- a/src/misc.rs
+++ b/src/misc.rs
@@ -1,4 +1,4 @@
-use base64::{engine::general_purpose, Engine as _};
+use base64::{Engine as _, engine::general_purpose};
 use egui_plot::{Line, PlotPoint, PlotPoints, Points};
 use emath::Pos2;
 use getrandom::getrandom;