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cors

Cross-Origin Resource Sharing policies and preflights

WebDo Browsers Support PUT DELETE HEAD via XMLHttpRequest?

Modern browsers like Chrome, Firefox, Safari, Edge fully support HTTP PUT, DELETE, HEAD via XMLHttpRequest (XHR). Debunk myths, check compatibility, CORS limits, and JS examples for REST APIs.

1 answer• 1 view
WebFix CORS Missing Access-Control-Allow-Origin in XMLHttpRequest

Resolve 'Missing CORS header Access-Control-Allow-Origin' error in VM Essentials plugin's status-update.js. Server-side PHP fixes for Joomla, handle preflights, add headers, and test XMLHttpRequest requests effectively.

1 answer• 1 view
WebFix HTML form POST to Google Apps Script Web App (2025)

Fix HTML form POST failures to Google Apps Script web apps after June 2025. Redeploy the web app, reauthorize scopes, update /exec URL, and avoid CORS preflight.

1 answer• 1 view
WebFix CORS Preflight OPTIONS Failures in ASP.NET Web API 2 OWIN

Resolve CORS preflight (OPTIONS) failures in ASP.NET Web API 2 on IIS with OWIN OAuth/JWT auth. Fix duplicate pipelines, middleware order, IIS handlers, and OPTIONS blocks for Angular frontend.

1 answer• 1 view