PptxGenjs writeFile() not working in IE11

Question

While everything seems to work fine, when debugger hits pres.writeFile() function , i cant get the pptx at all. Mostly like a promise-base issue. Of course when testing with Chrome everything works as expetexted. Anyone face any similar issue before? Any suggestions? What's wrong with IE11?

    var pres = new pptxgen();

function fetch_data(el) {
    $.ajax({
        url:`${document.querySelector('.off-to-see-the-wizard > .route').innerHTML}`,
        contentType:"application/json",
        dataType:"json",
        success:function(response){
            if(response)
            {                 
                var data=JSON.parse(response);
                createPresentation(data,el);
            }
            else{
                console.log(response)
            }
        },
        error:function(err){
            console.log(err);
        }
    })
}


function createPresentation(data){
    var second_image="image/base64 ...."
    var main_image="image/jpg;base64 ..."

    function createMasterSlide(pres){
        pres.defineSlideMaster({
                title:'MASTER_SLIDE',
                bkgd:  'FFFFFF',
                objects:[
                    {'text':{text:`Test ${data._gateDescript} review`,options:{color:'000000',x:4.7,y:6.77,h:0.46,w:3.63, fontSize:14}}},
                    {'image':{x:0.3,y:6.47,w:1.14,h:0.83,data:second_image}}
                ],
                slideNumber: { x:9.11, y:6.77 ,w:0.43 ,h:0.42}
            })
        }
    function createMainSlide(pres){
        pres.author="Team";
        pres.layout='LAYOUT_4x3';
        let main_slide=pres.addSlide();
        main_slide.addImage({data:main_image, w:10, h:7.5})
        main_slide.addText(`Project ID:  ${data._p.Id}\nProject Name: ${data._p.Name}`, {color:'D55C00' ,x:0.47, y:3.56, w:5.0, h:0.7, fontSize:24})
        main_slide.addText(`Review: Test ${data._gateDescript} \nDate: ${Date.now()} `)
        }

    createMasterSlide(pres);
    createMainSlide(pres);
    pres.writeFile('Presentation.pptx');
}

Quick Update Error : Please see image attached. Error

Ι get to know that jszip has an issue with ie11 To be specific pptxgenjs make use of jszip , that runs generateInternalStream. In the scope of this function something breaks out. Any clues?

Answer 1

Quick update for your reference . The issue was finally resolved by installing jszip 3.1.5 version. Its stable and functionally using IE11.

So you should install this specific version

npm install [email protected] --save

Then please navigate to node modules , get to copy all jszip node module. Navigate back to pptxgenjs node module. Navigate into pptxgenjs--->node_modules and overwrite jszip with the version you have installed and copied previously.

So pptxgenjs lib would use jszip 3.1.5 version .

Issue resolved. Thanks everyone :)