=== first transform (callbacks NOT yet registered) ===
[BEGIN][END]
=== second transform (callbacks registered, file:// blocked) ===
[BEGIN][END]
[1667:1667:0516/091807.946574:INFO:CONSOLE:36] "XSLTProcessor and XSLT Processing Instructions have been deprecated by all browsers. These features will be removed from this browser soon. See https://chromestatus.com/feature/4709671889534976.", source: http://127.0.0.1:8765/poc.html (36) [1667:1667:0516/091807.948313:INFO:CONSOLE:41] "Unsafe attempt to load URL file:///proc/self/status from frame with URL http://127.0.0.1:8765/poc.html. Domains, protocols and ports must match. [1667:1667:0516/091807.948391:INFO:CONSOLE:51] "Unsafe attempt to load URL file:///proc/self/status from frame with URL http://127.0.0.1:8765/poc.html. Domains, protocols and ports must match. [1667:1667:0516/091807.949005:INFO:CONSOLE:58] "XSLT_XXE_RESULT_BEGIN", source: http://127.0.0.1:8765/poc.html (58) [1667:1667:0516/091807.949075:INFO:CONSOLE:59] "[BEGIN][END]", source: http://127.0.0.1:8765/poc.html (59) [1667:1667:0516/091807.949165:INFO:CONSOLE:60] "XSLT_XXE_RESULT_END", source: http://127.0.0.1:8765/poc.html (60) [1667:1667:0516/091807.949231:INFO:CONSOLE:61] "XSLT_XXE_CONTROL_BEGIN", source: http://127.0.0.1:8765/poc.html (61) [1667:1667:0516/091807.949348:INFO:CONSOLE:62] "[BEGIN][END]", source: http://127.0.0.1:8765/poc.html (62) [1667:1667:0516/091807.949478:INFO:CONSOLE:63] "XSLT_XXE_CONTROL_END", source: http://127.0.0.1:8765/poc.html (63)