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Add query param to check if Blazor WASM app is under debug #24972

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Merged
1 commit merged into from
Aug 18, 2020
Merged

Add query param to check if Blazor WASM app is under debug #24972

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2 changes: 1 addition & 1 deletion src/Components/Web.JS/dist/Release/blazor.webassembly.js
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11 changes: 10 additions & 1 deletion src/Components/Web.JS/src/Platform/Mono/MonoDebugger.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -3,10 +3,17 @@ import { WebAssemblyResourceLoader } from '../WebAssemblyResourceLoader';
const currentBrowserIsChrome = (window as any).chrome
&& navigator.userAgent.indexOf('Edge') < 0; // Edge pretends to be Chrome

let isDebugging = true;

window.addEventListener('load', () => {
const params = new URLSearchParams(window.location.search);
isDebugging = params.get('_blazor_debug') === 'true';
})

let hasReferencedPdbs = false;

export function hasDebuggingEnabled() {
return hasReferencedPdbs && currentBrowserIsChrome;
return isDebugging && hasReferencedPdbs && currentBrowserIsChrome;
}

export function attachDebuggerHotkey(resourceLoader: WebAssemblyResourceLoader) {
Expand All @@ -26,6 +33,8 @@ export function attachDebuggerHotkey(resourceLoader: WebAssemblyResourceLoader)
console.error('Cannot start debugging, because the application was not compiled with debugging enabled.');
} else if (!currentBrowserIsChrome) {
console.error('Currently, only Microsoft Edge (80+), or Google Chrome, are supported for debugging.');
} else if (!isDebugging) {
console.error(`_blazor_debug query parameter must be set to enable debugging. To enable debugging, go to ${location.href}?_blazor_debug=true.`);
} else {
launchDebugger();
}
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