Blazor Component Javascript Errors (Microsoft.JSInterop.JSException)

I have a JavaScript function stored in a separate JS file that sets the page title for a new Blazor app that looks like this:

window.setTitle = (title, icon) => {    //title    document.title = title;    $("#page_title").html(title);    //page icon    $("#page_icon").removeClass().addClass('fad fa-'+ icon +' fa-2x');}

On a cold startup of the app, when hitting it through a browser and it hasn't been hit in a little while, I'll end up with the following in the console:

Microsoft.JSInterop.JSException: Could not find 'setTitle' ('setTitle' was undefined).Error: Could not find 'setTitle' ('setTitle' was undefined).    at https://example.com/_framework/blazor.webassembly.js:1:1287    at Array.forEach (<anonymous>)    at e.findFunction (https://example.com/_framework/blazor.webassembly.js:1:1247)    at b (https://example.com/_framework/blazor.webassembly.js:1:2989)    at https://example.com/_framework/blazor.webassembly.js:1:3935    at new Promise (<anonymous>)    at Object.beginInvokeJSFromDotNet (https://example.com/_framework/blazor.webassembly.js:1:3908)    at Object.w [as invokeJSFromDotNet] (https://example.com/_framework/blazor.webassembly.js:1:64218)    at _mono_wasm_invoke_js_blazor (https://example.com/_framework/dotnet.5.0.6.js:1:190800)    at do_icall (<anonymous>:wasm-function[10596]:0x194e4e)   at Microsoft.JSInterop.JSRuntime.<InvokeAsync>d__15`1[[System.Object, System.Private.CoreLib, Version=5.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].MoveNext()   at Microsoft.JSInterop.JSRuntimeExtensions.InvokeVoidAsync(IJSRuntime jsRuntime, String identifier, Object[] args)   at App.Web.Portal.Client.Shared.PageTitle.OnAfterRenderAsync(Boolean firstRender)   at Microsoft.AspNetCore.Components.RenderTree.Renderer.GetErrorHandledTask(Task taskToHandle)d.printErr @ blazor.webassembly.js:1

The part that confuses me is, if I just do a hard refresh (CTRL + Shift + R), then everything loads up perfectly fine and runs great without any changes or deployments. Given that, I don't really know what to do or where to look on how to correct this.

Has anyone else seen this before or have any tips on how to prevent it?