Revert "fixed typo in the comment (mebjas#637)"

This reverts commit 128c0b4.

Revert "Bump decode-uri-component from 0.2.0 to 0.2.2 (mebjas#647)"

This reverts commit d28c09a.

Revert "add await to this.surface.play() (mebjas#648)"

This reverts commit 4d384a0.

Revert "Bump json5 from 1.0.1 to 1.0.2 (mebjas#667)"

This reverts commit 7f57cad.

Revert "Fixes/657 (mebjas#671)"

This reverts commit 4a9a039.

src/camera/core-impl.ts

@@ -186,7 +186,7 @@ class RenderedCameraImpl implements RenderedCamera {
 
         this.surface.addEventListener("playing", onVideoStart);
         this.surface.srcObject = this.mediaStream;
-        return this.surface.play();
+        this.surface.play();
     }
 
     static async create(
@@ -205,7 +205,7 @@ class RenderedCameraImpl implements RenderedCamera {
                 aspectRatioConstraint);
         }
 
-        await renderedCamera.setupSurface();
+        renderedCamera.setupSurface();
         return renderedCamera;
     }
 

src/html5-qrcode-scanner.ts

@@ -1032,15 +1032,13 @@ export class Html5QrcodeScanner {
     }
 
     private showHideScanTypeSwapLink(shouldDisplay?: boolean) {
-        if (this.scanTypeSelector.hasMoreThanOneScanType()) {
-            if (shouldDisplay !== true) {
-                shouldDisplay = false;
-            }
-
-            this.sectionSwapAllowed = shouldDisplay;
-            this.getDashboardSectionSwapLink().style.display
-                = shouldDisplay ? "inline-block" : "none";
+        if (shouldDisplay !== true) {
+            shouldDisplay = false;
         }
+
+        this.sectionSwapAllowed = shouldDisplay;
+        this.getDashboardSectionSwapLink().style.display
+            = shouldDisplay ? "inline-block" : "none";
     }
 
     private insertCameraScanImageToScanRegion() {

src/state-manager.ts

@@ -9,7 +9,7 @@
 export enum Html5QrcodeScannerState {
     // Invalid internal state, do not set to this state.
     UNKNOWN = 0,
-    // Indicates the scanning is not running or user is using file based
+    // Indicates the sanning is not running or user is using file based
     // scanning.
     NOT_STARTED = 1,
     // Camera scan is running.