Abstract: Methods, apparatus and computer programs are provided for determining header data for and based on a plurality of messages. Each message comprises header data having a plurality of fields each of which has a value. A first message is received and data indicative of at least some of the header data of the first message is stored. A second message is received and a value for at least one given field associated with header data for the second message is determined based at least on the stored data and the header data of the second message. The determined value is other than a value of the given field of the second message.

Abstract: Methods, systems, devices and computer program products for modifying and processing host webpage data are described. The host webpage data intended for receipt by a browser which will interpret the host webpage data and generate a host webpage document therefrom. The host webpage data is modified using second and third webpage data before being sent to the browser. The second webpage data is arranged to cause a frame to be generated within the host webpage document, the generated frame comprising a second webpage document which is associated with a different domain to the host webpage document. Furthermore, the third webpage data is arranged to cause the browser to allow access to functionality of the host webpage document by the second webpage document which would otherwise be blocked.

Abstract: A method, apparatus and computer program are provided for controlling access to content in a network 400 comprising a user equipment (UE) 402 and servers 406, 434. The UE 402 comprises an application module configured to process executable code using data retrieved from a first server 406. A request message 436 comprising first data identifying the first server 406 associated with the application module and second data indicative of a request for content from a second server 434 received from the application module 428 is analysed so as to determine an access permission. The access permission is based on an attribute of the second server 434 satisfying a predetermined criterion with respect to the first server 406. An access control parameter is selectively included in a response message 442, 448 in dependence on the access permission to provide permission to access retrieved content included in the response message 442.

Abstract: Methods, apparatus and computer programs are provided for determining header data for and based on a plurality of messages. Each message comprises header data having a plurality of fields each of which has a value. A first message is received and data indicative of at least some of the header data of the first message is stored. A second message is received and a value for at least one given field associated with header data for the second message is determined based at least on the stored data and the header data of the second message. The determined value is other than a value of the given field of the second message.

Abstract: Methods, systems, devices and computer program products for modifying and processing host webpage data are described. The host webpage data intended for receipt by a browser which will interpret the host webpage data and generate a host webpage document therefrom. The host webpage data is modified using second and third webpage data before being sent to the browser. The second webpage data is arranged to cause a frame to be generated within the host webpage document, the generated frame comprising a second webpage document which is associated with a different domain to the host webpage document. Furthermore, the third webpage data is arranged to cause the browser to allow access to functionality of the host webpage document by the second webpage document which would otherwise be blocked.