Help running espruino on the F401 Nucleo

Well, that one flashed correctly and run only through st-link, never by drag and drop.
So I didn't checked further...
The official one did not flash through the standard copy/paste under windows 8.1 64 bits.
That said, it flashed using st-link utility and runs from the web ide.

Screen capture with both @DrAzzy and official Espruino for NucleoF401RE board.

Connected
>
=undefined
>echo(0);
<<<<<{"VERSION":"1v81.79","BUILD_DATE":"­Oct 18 2015","BUILD_TIME":"00:27:36","GIT_COMMI­T":"d19c544b8a0e247524f41bf490fee7eb03fb­387c","BOARD":"NUCLEOF401RE","CHIP":"STM­32F401RET6","CHIP_FAMILY":"STM32F4","FLA­SH":524288,"RAM":98304,"SERIAL":"56005b0­0-0b513333-37343534","CONSOLE":"Serial2"­,"EXPORTS":{"jsvLock":6661,"jsvLockAgain­Safe":6625,"jsvUnLock":6573,"jsvSkipName­":193093,"jsvMathsOp":17313,"jsvMathsOpS­kipNames":115589,"jsvNewFromFloat":20202­1,"jsvNewFromInteger":202089,"jsvNewFrom­String":33209,"jsvNewFromBool":202045,"j­svGetFloat":79457,"jsvGetInteger":193809­,"jsvGetBool":139461,"jspeiFindInScopes"­:93809,"jspReplaceWith":178577,"jspeFunc­tionCall":171857,"jspGetNamedVariable":8­9277,"jspGetNamedFie
Connected
>ld":58009,"jspGetVarNamedField":57625,"­jsvNewWithFlags":197489}}>>>>>
=undefined
=undefined
>echo(0);
<<<<<{"VERSION":"1v81.79","BUILD_DATE":"­Oct 18 2015","BUILD_TIME":"00:27:36","GIT_COMMI­T":"d19c544b8a0e247524f41bf490fee7eb03fb­387c","BOARD":"NUCLEOF401RE","CHIP":"STM­32F401RET6","CHIP_FAMILY":"STM32F4","FLA­SH":524288,"RAM":98304,"SERIAL":"56005b0­0-0b513333-37343534","CONSOLE":"Serial2"­,"EXPORTS":{"jsvLock":6661,"jsvLockAgain­Safe":6625,"jsvUnLock":6573,"jsvSkipName­":193093,"jsvMathsOp":17313,"jsvMathsOpS­kipNames":115589,"jsvNewFromFloat":20202­1,"jsvNewFromInteger":202089,"jsvNewFrom­String":33209,"jsvNewFromBool":202045,"j­svGetFloat":79457,"jsvGetInteger":193809­,"jsvGetBool":139461,"jspeiFindInScopes"­:93809,"jspReplaceWith":178577,"jspeFunc­tionCall":171857,"jspGetNamedVariable":8­9277,"jspGetNamedField":58009,"jspGetVar­NamedField":57625,"jsvNewWithFlags":1974­89}}>>>>>
=undefined
>reset();
=undefined
 _____                 _
|   __|___ ___ ___ _ _|_|___ ___
|   __|_ -| . |  _| | | |   | . |
|_____|___|  _|_| |___|_|_|_|___|
          |_| http://espruino.com
 1v81.79 Copyright 2015 G.Williams
>Loading -134610944 bytes from flash...
>
Disconnected
>
Connected
>
=undefined
>echo(0);
<<<<<{"VERSION":"1v81","BUILD_DATE":"Oct­  8 2015","BUILD_TIME":"16:05:33","GIT_COMMI­T":"8e1efcf898350a290242d732631be15c36f5­3381","BOARD":"NUCLEOF401RE","CHIP":"STM­32F401RET6","CHIP_FAMILY":"STM32F4","FLA­SH":524288,"RAM":98304,"SERIAL":"56005b0­0-0b513333-37343534","CONSOLE":"Serial2"­,"EXPORTS":{"jsvLock":13789,"jsvLockAgai­nSafe":13777,"jsvUnLock":13753,"jsvSkipN­ame":82997,"jsvMathsOp":50761,"jsvMathsO­pSkipNames":128593,"jsvNewFromFloat":156­705,"jsvNewFromInteger":157117,"jsvNewFr­omString":158673,"jsvNewFromBool":157045­,"jsvGetFloat":59457,"jsvGetInteger":846­53,"jsvGetBool":86897,"jspeiFindInScopes­":159837,"jspReplaceWith":86581,"jspeFun­ctionCall":175133,"jspGetNamedVariable":­124777,"jspGetNamedFi
Connected
>eld":42141,"jspGetVarNamedField":87629,­"jsvNewWithFlags":156473}}>>>>>
=undefined
>echo(0);
<<<<<{"VERSION":"1v81","BUILD_DATE":"Oct­  8 2015","BUILD_TIME":"16:05:33","GIT_COMMI­T":"8e1efcf898350a290242d732631be15c36f5­3381","BOARD":"NUCLEOF401RE","CHIP":"STM­32F401RET6","CHIP_FAMILY":"STM32F4","FLA­SH":524288,"RAM":98304,"SERIAL":"56005b0­0-0b513333-37343534","CONSOLE":"Serial2"­,"EXPORTS":{"jsvLock":13789,"jsvLockAgai­nSafe":13777,"jsvUnLock":13753,"jsvSkipN­ame":82997,"jsvMathsOp":50761,"jsvMathsO­pSkipNames":128593,"jsvNewFromFloat":156­705,"jsvNewFromInteger":157117,"jsvNewFr­omString":158673,"jsvNewFromBool":157045­,"jsvGetFloat":59457,"jsvGetInteger":846­53,"jsvGetBool":86897,"jspeiFindInScopes­":159837,"jspReplaceWith":86581,"jspeFun­ctionCall":175133,"jspGetNamedVariable":­124777,"jspGetNamedField":42141,"jspGetV­arNamedField":87629,"jsvNewWithFlags":15­6473}}>>>>>
=undefined
>reset();
=undefined
 _____                 _
|   __|___ ___ ___ _ _|_|___ ___
|   __|_ -| . |  _| | | |   | . |
|_____|___|  _|_| |___|_|_|_|___|
          |_| http://espruino.com
 1v81 Copyright 2015 G.Williams
> 

So it seams to be a problem just with those restrictions mentionned above by ST.