Improve reliability of WebKit communication bridge (#437)

Resolves rdar://103089222

Author: ethan-kusters

Sources/SwiftDocC/Infrastructure/Communication/WebKitCommunicationBridge.swift

@@ -49,10 +49,8 @@ public struct WebKitCommunicationBridge: CommunicationBridge {
         do {
             let encodedMessage = try JSONEncoder().encode(message)
             let messageJSON = String(data: encodedMessage, encoding: .utf8)!
-                // Escape backticks to avoid conflicting with JavaScript's template string syntax.
-                .replacingOccurrences(of: "`", with: "\\`")
 
-            evaluateJavaScript("window.bridge.receive(JSON.parse(`\(messageJSON)`))") { _, _ in }
+            evaluateJavaScript("window.bridge.receive(\(messageJSON))") { _, _ in }
         } catch let error {
             throw CommunicationBridgeError.unableToEncodeMessage(message, underlyingError: error)
         }

Tests/SwiftDocCTests/Infrastructure/Communication/WebKitCommunicationBridgeTests.swift

@@ -49,7 +49,7 @@ class WebKitCommunicationBridgeTests: XCTestCase {
         let messageJSON = String(data: encodedMessage, encoding: .utf8)!
 
         let evaluateJavaScript: (String, ((Any?, Error?) -> ())?) -> () = { string, _ in
-            XCTAssertEqual(string, "window.bridge.receive(JSON.parse(`\(messageJSON)`))")
+            XCTAssertEqual(string, "window.bridge.receive(\(messageJSON))")
         }
 
         let bridge = WebKitCommunicationBridge()