Open Radar

 
JavaScripts referenced by HTML loaded into a WKWebKitView by an application fail to load when the application name contains spaces.

Steps to Reproduce:

1. Unzip the attached "JavaScriptPathBug_iOS.zip" file <https://smilesoftware.com/static/bugs/JavaScriptPathBug_iOS.zip>
2. Open JavaScriptPathBug_iOS.xcodeproj contained within in Xcode 8.3 beta (8W109m)
3. Choose the iPhone 7 / 10.3 Simulator
4. Run the project
5. Dismiss the alert with text "direct alert"
*. You'll see "Hello world!" as the app content

6. Open Safari with the Develop menu enabled
7. Choose Develop -> Simulator -> JS Bug -> JavaScriptBug.html
8. Click Console, and you'll see the error: "Not allowed to load local resource <url>" followed by the error: "ReferenceError: Can't find variable: secondaryAlert" which is a consequence of the first error (see attached "Screen Shot Simulator.png" file)

Expected Result:

Expected to see second alert with text "indirect alert from separate JavaScript file" after step 5 above.

Actual Result:

Found in steps to reproduce.

Can also reproduce on iPad mini Retina running 10.3 beta (14E5230e).

Functions properly on iPhone 7 Simulator running 10.2.

Functions properly on iPhone 7 hardware running 10.2.1 (14D27).

Hardware:

iPad mini Retina (MF086LL/A)

iOS:

10.3 (14E5230e)

Comments:

If you visit the Build Settings and change the Product Name from "JS Bug" to "JS_Bug"–that is, eliminate the space–you'll find that this will work properly on 10.3 as well.

Related to: rdar://30288608