imagejpeg

I am retrieving an image from a REST API via an HTTP GET with a request body. I've managed to check the returned content via this test using node.js and chai.js : expect(res).to.have.header('Content-Type', 'image/jpeg'); expect(res).to.have.header('Access-Control-Allow-Origin', '*'); expect(res).to.have.header('Access-Control-Allow-Headers', 'Access-Control-Allow-Headers, Origin, X-Requested-With, Content-Type, Accept, Authorization'); expect(res).to.have.header('Access-Control-Allow-Methods', 'GET, POST, PUT, DELETE, OPTIONS, HEAD'); expect(res).to.have.status(200); expect(res.body).to.be

All we know we can specify a cache validator for images by adding following lines to .htaccess file: <IfModule mod_expires.c> ExpiresActive On ExpiresDefault "access plus 1 year" </IfModule> .. and .. <IfModule mod_headers.c> <FilesMatch "\.(bmp|css|flv|gif|ico|jpg|jpeg|js|pdf|png|svg|swf|tif|tiff)$"> Header set Last-Modified "Mon, 31 Aug 2009 00:00:00 GMT" </FilesMatch> </IfModule> But, it will be effective for real JPG or PNG files. However, the question is, how to specify cache validator for images that are built with PHP codes and imagejpeg/imagepng functions on fly? (above codes are not