Browser extension for field detection and automatic population

1. A system for executing a browser extension application comprising:

a processor;

a storage device storing instructions that, when executed by the processor, cause the processor to perform operations comprising:

receiving from a browser extension server a regular expression configured to detect a plurality of fields in a web page;

executing the regular expression to detect a transaction field in the web page;

receiving from the browser extension server a secure token associated with the detected transaction field;

automatically populating the detected transaction field with the token;

detecting an unrecognized field in the web page;

in response to detecting the unrecognized field, providing suggested transaction data based on:

(1) transaction data not used to automatically populate a recognized transaction field; and

(2) a characteristic of the unrecognized field detected by the regular expression, the characteristic comprising a number of characters required to populate the field, and a type of character required to populate the field;

detecting a selection of the suggested transaction data to populate the unrecognized field, the selection being for less than all of the suggested transaction data;

providing to the browser extension server an indication of the selection of the suggested transaction data to populate the unrecognized field and; and

receiving from the browser extension server an updated regular expression configured to detect the unrecognized field in the web page.

2. The system for executing a browser extension application of claim 1 , wherein the operations further comprise providing to the browser extension server programming language describing the web page.

3. The system for executing a browser extension application of claim 1 , wherein the suggested transaction data is received from the browser extension server.

4. The system for executing a browser extension application of claim 1 , wherein receiving the updated regular expression comprises receiving the updated regular expression in response to sending a query to the browser extension server.

5. The system for executing a browser extension application of claim 1 , wherein:

the web page comprises a merchant-provided payment process, the payment process comprising a message; and

the operations further comprise:

providing, to the browser extension server, an indication of a transaction field detected in the message.

6. The system for executing a browser extension application of claim 1 , further comprising:

providing, to the browser extension server, an indication of an element detected in the web page.

7. The system for executing a browser extension application of claim 1 , wherein the transaction field comprises a payment field.

8. A method comprising:

receiving from a browser extension server a regular expression configured to detect a plurality of fields in a web page;

executing the regular expression to detect a transaction field in the web page and automatically populate the transaction field with stored data;

receiving from the browser extension server a secure token associated with the detected transaction field;

automatically populating the detected transaction field with the token;

detecting an unrecognized field in the web page;

in response to detecting the unrecognized field, providing suggested transaction data based on:

(1) transaction data not used to automatically populate a recognized transaction field; and

(2) a characteristic of the unrecognized field detected by the regular expression, the characteristic comprising a number of characters required to populate the field, a type of character required to populate the field;

detecting a selection of the suggested transaction data to populate the unrecognized field, the selection being for less than all of the suggested transaction data;

providing to the browser extension server an indication of the selection of the suggested transaction data to populate the unrecognized field; and

receiving from the browser extension server an updated regular expression configured to detect the unrecognized field in the web page.

9. The method of claim 8 , further comprising providing to the browser extension server programming language describing the web page.

10. The method of claim 8 , wherein the suggested transaction data is received from the browser extension server.

11. The method of claim 8 , wherein receiving the updated regular expression comprises receiving the updated regular expression in response to sending a query to the browser extension server.

12. The method of claim 8 , wherein:

the web page comprises a merchant-provided payment process, the payment process comprising a message; and

the method further comprises:

providing, to the browser extension server, an indication of an additional transaction field detected in the message.

13. The method of claim 8 , further comprising:

providing, to the browser extension server, an indication of an additional element detected in the web page.

14. The method of claim 8 , wherein the transaction field comprises a payment field.

15. A non-transitory computer-readable medium storing instructions that, when executed by a processor, cause the processor to perform operations comprising:

receiving from a browser extension server a regular expression configured to detect a plurality of fields in a web page;

executing the regular expression to detect a transaction field in a web page;

receiving from the browser extension server a secure token associated with the detected transaction field;

automatically populating the detected transaction field with the token;

detecting an unrecognized field in the web page;

in response to detecting the unrecognized field, providing suggested transaction data based on:

(1) transaction data not used to automatically populate a recognized transaction field; and

(2) a characteristic of the unrecognized field detected by the regular expression, the characteristic comprising a number of characters required to populate the field, a type of character required to populate the field;

detecting a selection of the suggested transaction data to populate the unrecognized field, the selection being for less than all of the suggested transaction data;

providing to the browser extension server an indication of the selection of the suggested transaction data to populate the unrecognized field; and

receiving from the browser extension server an updated regular expression configured to detect the unrecognized field in the web page.

16. The non-transitory computer-readable medium of claim 15 , wherein the operations further comprise providing to the browser extension server programming language describing the web page.

17. The non-transitory computer-readable medium of claim 15 , wherein the suggested transaction data is received from the browser extension server.

18. The non-transitory computer-readable medium of claim 15 , wherein receiving the updated regular expression comprises receiving the updated regular expression in response to sending a query to the browser extension server.

19. The non-transitory computer-readable medium of claim 15 , wherein:

the web page comprises a merchant-provided payment process, the payment process comprising a message; and

the operations further comprise:

providing, to the browser extension server, an indication of an additional transaction field detected in the message.

20. The non-transitory computer-readable medium of claim 15 , wherein the transaction field comprises a payment field.